本文介绍了每个财政年度,发票号码应以1开头的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一张有发票的访问表,没有主键和自动递增的值(在代码中我只写了cloumn和Inctrement +1)我希望每个金融年都应该开始发票(来自4月1日至3月31日是金融年份)

字段名称数据类型:

INVOICENO数字

状态文本

CUSTOMERNAME文字

ADDRESS1文字

ADDRESS2文字

TINNO文字

PONO文字

运输文字

BILLDATE DTAe /时间

InvoiceType文字

PODATE日期/时间

totalGrossAmt text

totalVatAmt文件

BILLAMT文本

TRANSPORTAMT文本

OTHERAMT textr

FINALAMT文本

ROUNDOFF文字

GRANDTOTAL文字

状态文字

税务文本



我尝试过:



i have one access table having invoice no it has a primary key and auto incremented value(Taking Max no in cloumn and Inctrement +1 in code only i am write) i want invoice no should be started for every finacial year (from april 1st to march 31 is finacial year )
Field Name Datatype:
INVOICENO Number
STATE Text
CUSTOMERNAME Text
ADDRESS1 TEXT
ADDRESS2 text
TINNO Text
PONO Text
TRANSPORT text
BILLDATE Dtae/Time
InvoiceType Text
PODATE date/time
totalGrossAmt text
totalVatAmt Text
BILLAMT Text
TRANSPORTAMT text
OTHERAMT textr
FINALAMT Text
ROUNDOFF text
GRANDTOTAL Text
STATUS Text
TAX Text

What I have tried:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Configuration;
using System.Globalization;
using System.Collections;
using System.Threading;

namespace Victory_Printing
{
    public partial class TAXINVOICE : Form
    {
        public TAXINVOICE()
        {
            InitializeComponent();
            ddlTransaction.SelectedIndex = 1;
            FillInvoiceID();
            this.ActiveControl = txtCustName;
        }
        int Ocredit;
        int invoice = 1;
        int rupees;
        string text;
        public static string numb;

        DataTable Products = new DataTable();
        DataTable productdt = new DataTable();
        public static int productnum;
        AutoCompleteStringCollection namesCollection = new AutoCompleteStringCollection();
        AutoCompleteStringCollection descriptionCollection = new AutoCompleteStringCollection();

        private void btnSave_Click(object sender, EventArgs e)
        {

            //PopupForm popup = new PopupForm();
            // DialogResult dialogresult = popup.ShowDialog();
            // if (dialogresult == DialogResult.OK)
            // {
            //     Console.WriteLine("You clicked OK");
            // }
            // else if (dialogresult == DialogResult.Cancel)
            // {
            //     Console.WriteLine("You clicked either Cancel or X button in the top right corner");
            // }
            // popup.Dispose();

            //DataTable dt = new DataTable();
            DataTable dtb = new DataTable();
            DataRow dr0 = dtb.NewRow();
            DataRow dr1 = dtb.NewRow();
            DataRow dr2 = dtb.NewRow();
            DataRow dr3 = dtb.NewRow();
            DataRow dr4 = dtb.NewRow();
            DataRow dr5 = dtb.NewRow();
            DataRow dr6 = dtb.NewRow();
            DataRow dr7 = dtb.NewRow();
            DataRow dr8 = dtb.NewRow();
            DataRow dr9 = dtb.NewRow();
            DataRow dr10 = dtb.NewRow();
            DataRow dr11 = dtb.NewRow();
            DataRow dr12 = dtb.NewRow();
            DataRow dr13 = dtb.NewRow();
            DataRow dr14 = dtb.NewRow();
            DataRow dr15 = dtb.NewRow();
            DataRow dr16 = dtb.NewRow();
            DataRow dr17 = dtb.NewRow();
            DataRow dr18 = dtb.NewRow();

            // DataRow dr16 = dt.NewRow();

            /* Row 1 */

            dtb.Columns.Add("SNo");
            dtb.Columns.Add("DESCRIPTION");
            dtb.Columns.Add("QTY");
            dtb.Columns.Add("UOM");
            dtb.Columns.Add("PRICE");
            dtb.Columns.Add("GROSS AMT");
            dtb.Columns.Add("VAT%");
            dtb.Columns.Add("VAT AMT");

            dtb.Columns.Add("TOTAL");

            dr0[0] = txtSno1.Text;
            dr0[1] = txtDescription1.Text;
            dr0[2] = txtqty1.Text;
            dr0[3] = cbUOM1.SelectedItem;
            dr0[4] = txtPrice1.Text;
            dr0[5] = txtGrossAmt1.Text;
            dr0[6] = txtVAT1.Text;
            dr0[7] = txtVatAmt1.Text;
            dr0[8] = txtTotal1.Text;

            dr1[0] = txtSno2.Text;
            dr1[1] = txtDescription2.Text;
            dr1[2] = txtqty2.Text;
            dr1[3] = cbUOM2.SelectedItem;
            dr1[4] = txtPrice2.Text;
            dr1[5] = txtGrossAmt2.Text;
            dr1[6] = txtVAT2.Text;
            dr1[7] = txtVatAmt2.Text;
            dr1[8] = txtTotal2.Text;


            dr2[0] = txtSno3.Text;
            dr2[1] = txtDescription3.Text;
            dr2[2] = txtqty3.Text;
            dr2[3] = cbUOM3.SelectedItem;
            dr2[4] = txtPrice3.Text;
            dr2[5] = txtGrossAmt3.Text;
            dr2[6] = txtVAT3.Text;
            dr2[7] = txtVatAmt3.Text;
            dr2[8] = txtTotal3.Text;

            dr3[0] = txtSno4.Text;
            dr3[1] = txtDescription4.Text;
            dr3[2] = txtqty4.Text;
            dr3[3] = cbUOM4.SelectedItem;
            dr3[4] = txtPrice4.Text;
            dr3[5] = txtGrossAmt4.Text;
            dr3[6] = txtVAT4.Text;
            dr3[7] = txtVatAmt4.Text;
            dr3[8] = txtTotal4.Text;

            dr4[0] = txtSno5.Text;
            dr4[1] = txtDescription5.Text;
            dr4[2] = txtqty5.Text;
            dr4[3] = cbUOM5.SelectedItem;
            dr4[4] = txtPrice5.Text;
            dr4[5] = txtGrossAmt5.Text;
            dr4[6] = txtVAT5.Text;
            dr4[7] = txtVatAmt5.Text;
            dr4[8] = txtTotal5.Text;

            dr5[0] = txtSno6.Text;
            dr5[1] = txtDescription6.Text;
            dr5[2] = txtqty6.Text;
            dr5[3] = cbUOM6.SelectedItem;
            dr5[4] = txtPrice6.Text;
            dr5[5] = txtGrossAmt6.Text;
            dr5[6] = txtVAT6.Text;
            dr5[7] = txtVatAmt6.Text;
            dr5[8] = txtTotal6.Text;

            dr6[0] = txtSno7.Text;
            dr6[1] = txtDescription7.Text;
            dr6[2] = txtqty7.Text;
            dr6[3] = cbUOM7.SelectedItem;
            dr6[4] = txtPrice7.Text;
            dr6[5] = txtGrossAmt7.Text;
            dr6[6] = txtVAT7.Text;
            dr6[7] = txtVatAmt7.Text;
            dr6[8] = txtTotal7.Text;

            dr7[0] = txtSno8.Text;
            dr7[1] = txtDescription8.Text;
            dr7[2] = txtqty8.Text;
            dr7[3] = cbUOM8.SelectedItem;
            dr7[4] = txtPrice8.Text;
            dr7[5] = txtGrossAmt8.Text;
            dr7[6] = txtVAT8.Text;
            dr7[7] = txtVatAmt8.Text;
            dr7[8] = txtTotal8.Text;

            dr8[0] = txtSno9.Text;
            dr8[1] = txtDescription9.Text;
            dr8[2] = txtqty9.Text;
            dr8[3] = cbUOM9.SelectedItem;
            dr8[4] = txtPrice9.Text;
            dr8[5] = txtGrossAmt9.Text;
            dr8[6] = txtVAT9.Text;
            dr8[7] = txtVatAmt9.Text;
            dr8[8] = txtTotal9.Text;

            dr9[0] = txtSno10.Text;
            dr9[1] = txtDescription10.Text;
            dr9[2] = txtqty10.Text;
            dr9[3] = cbUOM10.SelectedItem;
            dr9[4] = txtPrice10.Text;
            dr9[5] = txtGrossAmt10.Text;
            dr9[6] = txtVAT10.Text;
            dr9[7] = txtVatAmt10.Text;
            dr9[8] = txtTotal10.Text;

            dr10[0] = txtSno11.Text;
            dr10[1] = txtDescription11.Text;
            dr10[2] = txtqty11.Text;
            dr10[3] = cbUOM11.SelectedItem;
            dr10[4] = txtPrice11.Text;
            dr10[5] = txtGrossAmt11.Text;
            dr10[6] = txtVAT11.Text;
            dr10[7] = txtVatAmt11.Text;
            dr10[8] = txtTotal11.Text;

            dr11[0] = txtSno12.Text;
            dr11[1] = txtDescription12.Text;
            dr11[2] = txtqty12.Text;
            dr11[3] = cbUOM12.SelectedItem;
            dr11[4] = txtPrice12.Text;
            dr11[5] = txtGrossAmt12.Text;
            dr11[6] = txtVAT12.Text;
            dr11[7] = txtVatAmt12.Text;
            dr11[8] = txtTotal12.Text;

            dr12[0] = txtSno13.Text;
            dr12[1] = txtDescription13.Text;
            dr12[2] = txtqty13.Text;
            dr12[3] = cbUOM13.SelectedItem;
            dr12[4] = txtPrice13.Text;
            dr12[5] = txtGrossAmt13.Text;
            dr12[6] = txtVAT13.Text;
            dr12[7] = txtVatAmt13.Text;
            dr12[8] = txtTotal13.Text;

            dr13[0] = txtSno14.Text;
            dr13[1] = txtDescription14.Text;
            dr13[2] = txtqty14.Text;
            dr13[3] = cbUOM14.SelectedItem;
            dr13[4] = txtPrice14.Text;
            dr13[5] = txtGrossAmt14.Text;
            dr13[6] = txtVAT14.Text;
            dr13[7] = txtVatAmt14.Text;
            dr13[8] = txtTotal14.Text;


            dr14[0] = txtSno15.Text;
            dr14[1] = txtDescription15.Text;
            dr14[2] = txtqty15.Text;
            dr14[3] = cbUOM15.SelectedItem;
            dr14[4] = txtPrice15.Text;
            dr14[5] = txtGrossAmt15.Text;
            dr14[6] = txtVAT15.Text;
            dr14[7] = txtVatAmt15.Text;
            dr14[8] = txtTotal15.Text;

            dr15[0] = txtSno16.Text;
            dr15[1] = txtDescription16.Text;
            dr15[2] = txtqty16.Text;
            dr15[3] = cbUOM16.SelectedItem;
            dr15[4] = txtPrice16.Text;
            dr15[5] = txtGrossAmt16.Text;
            dr15[6] = txtVAT16.Text;
            dr15[7] = txtVatAmt16.Text;
            dr15[8] = txtTotal16.Text;

            dr16[0] = txtSno17.Text;
            dr16[1] = txtDescription17.Text;
            dr16[2] = txtqty17.Text;
            dr16[3] = cbUOM17.SelectedItem;
            dr16[4] = txtPrice17.Text;
            dr16[5] = txtGrossAmt17.Text;
            dr16[6] = txtVAT17.Text;
            dr16[7] = txtVatAmt17.Text;
            dr16[8] = txtTotal17.Text;

            dr17[0] = txtSno18.Text;
            dr17[1] = txtDescription18.Text;
            dr17[2] = txtqty18.Text;
            dr17[3] = cbUOM18.SelectedItem;
            dr17[4] = txtPrice18.Text;
            dr17[5] = txtGrossAmt18.Text;
            dr17[6] = txtVAT18.Text;
            dr17[7] = txtVatAmt18.Text;
            dr17[8] = txtTotal18.Text;


            dr18[0] = txtSno19.Text;
            dr18[1] = txtDescription19.Text;
            dr18[2] = txtqty19.Text;
            dr18[3] = cbUOM19.SelectedItem;
            dr18[4] = txtPrice19.Text;
            dr18[5] = txtGrossAmt19.Text;
            dr18[6] = txtVAT19.Text;
            dr18[7] = txtVatAmt19.Text;
            dr18[8] = txtTotal19.Text;

            if (cbUOM1.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr0);
            }
            if (cbUOM2.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr1);
            }
            if (cbUOM3.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr2);
            }
            if (cbUOM4.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr3);
            }
            if (cbUOM5.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr4);
            }
            if (cbUOM6.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr5);
            }
            if (cbUOM7.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr6);
            }
            if (cbUOM8.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr7);
            }
            if (cbUOM9.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr8);
            }
            if (cbUOM10.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr9);
            }
            if (cbUOM11.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr10);
            }
            if (cbUOM12.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr11);
            }
            if (cbUOM13.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr12);
            }
            if (cbUOM14.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr13);
            }
            if (cbUOM15.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr14);
            }
            if (cbUOM16.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr15);
            }
            if (cbUOM17.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr16);
            }
            if (cbUOM18.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr17);
            }
            if (cbUOM19.SelectedValue != "Select")
            {
                dtb.Rows.Add(dr18);
            }

            //if (printDlg.ShowDialog() == DialogResult.OK)
            //    printDoc.Print();

            decimal a = 0, b = String.IsNullOrEmpty(txtFinalAmt.Text) ? 0 : decimal.Parse(txtFinalAmt.Text.Trim());

            rupees = Convert.ToInt32(b);

            DialogResult dialogResult = MessageBox.Show("Are You Sure??", "Do you want to save?", MessageBoxButtons.YesNo);
            if (dialogResult == DialogResult.Yes)
            {
                //do something
                int num = Convert.ToInt32(txtInvoice.Text);
                string counterSales_InsertRow = "INSERT INTO TAXINVOICE(INVOICENO,STATE ,CUSTOMERNAME ,ADDRESS1,ADDRESS2,TINNO,PONO,TRANSPORT,InvoiceType,BILLDATE,PODATE,totalGrossAmt,totalVatAmt,BILLAMT,TRANSPORTAMT,OTHERAMT,FINALAMT,ROUNDOFF,GRANDTOTAL,TAX,CurrentYear,CreatedOn)VALUES (@INVOICENO,@STATE,@CUSTOMERNAME,@ADDRESS1,@ADDRESS2,@TINNO,@PONO,@TRANSPORT,@InvoiceType,@BILLDATE,@PODATE,@totalGrossAmt,@totalVatAmt,@BILLAMT,@TRANSPORTAMT,@OTHERAMT,@FINALAMT,@ROUNDOFF,@GRANDTOTAL,@TAX,@CurrentYear,@CreatedOn);";
                OleDbParameter[] parameters = new OleDbParameter[22];
                parameters[0] = new OleDbParameter("@INVOICENO", num);
                //parameters[0] = new OleDbParameter("@INVOICENO", OleDbType.Integer).Value = num;
                parameters[1] = new OleDbParameter("@STATE", comboBox1.Text);
                parameters[2] = new OleDbParameter("@CUSTOMERNAME", txtCustName.Text.ToUpper());
                parameters[3] = new OleDbParameter("@ADDRESS1", txtAddress1.Text);
                parameters[4] = new OleDbParameter("@ADDRESS2", txtAddress2.Text);
                parameters[5] = new OleDbParameter("@TINNO", txtTINnum.Text);
                parameters[6] = new OleDbParameter("@PONO", txtPOnum.Text);
                parameters[7] = new OleDbParameter("@TRANSPORT", tbTransportValue.Text.ToUpper());
                parameters[8] = new OleDbParameter("@InvoiceType", ddlTransaction.SelectedItem);
                parameters[9] = new OleDbParameter("@BILLDATE", Convert.ToDateTime(dtToday.Text));
                parameters[10] = new OleDbParameter("@PODATE", CreatedDate.Text);
                parameters[11] = new OleDbParameter("@totalGrossAmt", txtTotalGrossAmt.Text);
                parameters[12] = new OleDbParameter("@totalVatAmt", txtTotalVATAMT.Text);
                parameters[13] = new OleDbParameter("@BILLAMT", txtTotals.Text);
                parameters[14] = new OleDbParameter("@TRANSPORTAMT", txtTransport.Text);
                parameters[15] = new OleDbParameter("@OTHERAMT", txtOthers.Text);
                parameters[16] = new OleDbParameter("@FINALAMT", txtTotals.Text);
                parameters[17] = new OleDbParameter("@ROUNDOFF", txtRoundOff.Text);
                parameters[18] = new OleDbParameter("@GRANDTOTAL", txtGrandTotal.Text);
                parameters[19] = new OleDbParameter("@TAX", txtVAT1.Text);
                parameters[20] = new OleDbParameter("@CurrentYear", DateTime.Now.Year);
                parameters[21] = new OleDbParameter("@CreatedOn", Convert.ToDateTime(dtToday.Text));

                ExecuteOtherGoodsDatabaseTransaction(counterSales_InsertRow, parameters);
                InsertAllInvoiceItems();
                // string Productscount = "select count()";
                GlobalClass.dtHeaders = new DataTable();
                Headers dsh = new Headers();
                GlobalClass.dtHeaders = dsh.Tables[0];
                //numb = ConvertNumbertoWords(number) + "Only";
                //for (int i = 0; i < 5; i++)
                numb = rupeestoword(rupees);
                // rupees(rupees);
                foreach (DataRow Datarow in dtb.Rows)
                {

                    DataRow dr = GlobalClass.dtHeaders.NewRow();
                    dr["CustomerName"] = "     " + txtCustName.Text.ToUpper();
                    dr["Address1"] = "     " + txtAddress1.Text;
                    dr["Address2"] = "     " + txtAddress2.Text;
                    dr["TIN"] = txtTINnum.Text.ToUpper();
                    dr["InvoiceNo"] = txtInvoice.Text.ToUpper();
                    dr["InvoiceDate"] = Convert.ToDateTime(dtToday.Text).ToString("dd/MM/yy");
                    dr["PONo"] = txtPOnum.Text.ToUpper();
                    dr["Dated"] = CreatedDate.Text;
                    dr["Transport"] = tbTransportValue.Text.Trim().ToUpper();
                    dr["SNO"] = Datarow.ItemArray[0];
                    dr["DESCRIPTION"] = Datarow.ItemArray[1].ToString().ToUpper();
                    dr["QTY"] = Datarow.ItemArray[2].ToString();
                    dr["UOM"] = Datarow.ItemArray[3].ToString();
                    dr["PRICE"] = Datarow.ItemArray[4].ToString();
                    dr["GROSSAMT"] = Datarow.ItemArray[5].ToString();
                    dr["VAT"] = Datarow.ItemArray[6].ToString();
                    dr["VATAMT"] = Datarow.ItemArray[7].ToString();
                    dr["TOTAL"] = Datarow.ItemArray[8].ToString();
                    dr["GROSSTOTAL"] = txtTotalGrossAmt.Text;
                    dr["VATTOTAL"] = txtTotalVATAMT.Text;
                    dr["TOTALAMT"] = txtTotals.Text;
                    dr["FINALAMOUNT"] = txtTotals.Text;
                    dr["AMTINWORDS"] = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(numb.ToLower());
                    dr["TRANSPORT"] = txtTransport.Text.ToUpper();
                    dr["OTHERS"] = txtOthers.Text;
                    dr["ROUNDOFF"] = txtRoundOff.Text;
                    dr["GRANDTOTAL"] = txtGrandTotal.Text + ".00";
                    dr["INVOICETYPE"] = ddlTransaction.Text.ToUpper();
                    GlobalClass.dtHeaders.Rows.Add(dr);
                }

                Form4 frm = new Form4();
                frm.Show();
                this.Hide();
                clear();
            }
            else if (dialogResult == DialogResult.No)
            {
                //this.Close();
            }

        }

        public void clear()
        {
            // textBox1.Text = "";
            txtAddress1.Text = "";
            txtAddress2.Text = "";
            txtCustName.Text = "";
            txtPOnum.Text = "";
            txtTINnum.Text = "";
            txtTransport.Text = "0.00";
            txtOthers.Text = "0.00";
            txtFinalAmt.Text = "0.00";
            txtGrandTotal.Text = "0.00";
            txtRoundOff.Text = "";
            tbTransportValue.Text = "";
            txtDescription1.Text = "";
            txtDescription2.Text = "";
            txtDescription3.Text = "";
            txtDescription4.Text = "";
            txtDescription5.Text = "";
            txtDescription6.Text = "";
            txtDescription7.Text = "";
            txtDescription8.Text = "";
            txtDescription9.Text = "";
            txtDescription10.Text = "";
            txtDescription11.Text = "";
            txtDescription12.Text = "";
            txtDescription13.Text = "";
            txtDescription15.Text = "";
            txtDescription14.Text = "";
            txtDescription16.Text = "";
            txtDescription18.Text = "";
            txtDescription17.Text = "";
            txtDescription19.Text = "";
            txtqty1.Text = "";
            txtqty2.Text = "";
            txtqty3.Text = "";
            txtqty4.Text = "";
            txtqty5.Text = "";
            txtqty6.Text = "";
            txtqty7.Text = "";
            txtqty8.Text = "";
            txtqty9.Text = "";
            txtqty10.Text = "";
            txtqty11.Text = "";
            txtqty12.Text = "";
            txtqty13.Text = "";
            txtqty14.Text = "";
            txtqty15.Text = "";
            txtqty16.Text = "";
            txtqty17.Text = "";
            txtqty18.Text = "";
            txtqty19.Text = "";
            txtPrice1.Text = "";
            txtPrice2.Text = "";
            txtPrice3.Text = "";
            txtPrice4.Text = "";
            txtPrice5.Text = "";
            txtPrice6.Text = "";
            txtPrice7.Text = "";
            txtPrice8.Text = "";
            txtPrice9.Text = "";
            txtPrice10.Text = "";
            txtPrice11.Text = "";
            txtPrice12.Text = "";
            txtPrice13.Text = "";
            txtPrice14.Text = "";
            txtPrice15.Text = "";
            txtPrice16.Text = "";
            txtPrice17.Text = "";
            txtPrice18.Text = "";
            txtPrice19.Text = "";
            txtSno1.Text = "";
            txtSno2.Text = "";
            txtSno3.Text = "";
            txtSno4.Text = "";
            txtSno5.Text = "";
            txtSno6.Text = "";
            txtSno7.Text = "";
            txtSno8.Text = "";
            txtSno9.Text = "";
            txtSno10.Text = "";
            txtSno11.Text = "";
            txtSno12.Text = "";
            txtSno13.Text = "";
            txtSno14.Text = "";
            txtSno15.Text = "";
            txtSno16.Text = "";
            txtSno17.Text = "";
            txtSno18.Text = "";
            txtSno19.Text = "";
            txtGrossAmt1.Text = "";
            txtGrossAmt2.Text = "";
            txtGrossAmt3.Text = "";
            txtGrossAmt4.Text = "";
            txtGrossAmt5.Text = "";
            txtGrossAmt6.Text = "";
            txtGrossAmt7.Text = "";
            txtGrossAmt8.Text = "";
            txtGrossAmt9.Text = "";
            txtGrossAmt10.Text = "";
            txtGrossAmt11.Text = "";
            txtGrossAmt12.Text = "";
            txtGrossAmt13.Text = "";
            txtGrossAmt14.Text = "";
            txtGrossAmt15.Text = "";
            txtGrossAmt16.Text = "";
            txtGrossAmt17.Text = "";
            txtGrossAmt18.Text = "";
            txtGrossAmt19.Text = "";
            txtVatAmt1.Text = "";
            txtVatAmt2.Text = "";
            txtVatAmt3.Text = "";
            txtVatAmt4.Text = "";
            txtVatAmt5.Text = "";
            txtVatAmt6.Text = "";
            txtVatAmt7.Text = "";
            txtVatAmt8.Text = "";
            txtVatAmt9.Text = "";
            txtVatAmt10.Text = "";
            txtVatAmt11.Text = "";
            txtVatAmt12.Text = "";
            txtVatAmt13.Text = "";
            txtVatAmt14.Text = "";
            txtVatAmt15.Text = "";
            txtVatAmt16.Text = "";
            txtVatAmt17.Text = "";
            txtVatAmt18.Text = "";
            txtVatAmt19.Text = "";
            txtTotal1.Text = "";
            txtTotal2.Text = "";
            txtTotal3.Text = "";
            txtTotal4.Text = "";
            txtTotal5.Text = "";
            txtTotal6.Text = "";
            txtTotal7.Text = "";
            txtTotal8.Text = "";
            txtTotal9.Text = "";
            txtTotal10.Text = "";
            txtTotal11.Text = "";
            txtTotal12.Text = "";
            txtTotal13.Text = "";
            txtTotal14.Text = "";
            txtTotal15.Text = "";
            txtTotal16.Text = "";
            txtTotal17.Text = "";
            txtTotal18.Text = "";
            txtTotal19.Text = "";
            txtVAT1.Text = "";
            txtVAT2.Text = "";
            txtVAT3.Text = "";
            txtVAT4.Text = "";
            txtVAT5.Text = "";
            txtVAT6.Text = "";
            txtVAT7.Text = "";
            txtVAT8.Text = "";
            txtVAT9.Text = "";
            txtVAT10.Text = "";
            txtVAT11.Text = "";
            txtVAT12.Text = "";
            txtVAT13.Text = "";
            txtVAT14.Text = "";
            txtVAT15.Text = "";
            txtVAT16.Text = "";
            txtVAT17.Text = "";
            txtVAT18.Text = "";
            txtVAT19.Text = "";
            cbUOM1.SelectedValue = "";
            cbUOM2.SelectedValue = "";
            cbUOM3.SelectedValue = "";
            cbUOM4.SelectedValue = "";
            cbUOM5.SelectedValue = "";
            cbUOM6.SelectedValue = "";
            cbUOM7.SelectedValue = "";
            cbUOM8.SelectedValue = "";
            cbUOM9.SelectedValue = "";
            cbUOM10.SelectedValue = "";
            cbUOM11.SelectedValue = "";
            cbUOM12.SelectedValue = "";
            cbUOM13.SelectedValue = "";
            cbUOM14.SelectedValue = "";
            cbUOM15.SelectedValue = "";
            cbUOM16.SelectedValue = "";
            cbUOM17.SelectedValue = "";
            cbUOM18.SelectedValue = "";
            cbUOM19.SelectedValue = "";
            FillInvoiceID();
        }
        private void ExecuteOtherGoodsDatabaseTransaction(string command, OleDbParameter[] parameter)
        {
            string @filelocation = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbConnection conn = new OleDbConnection(@filelocation);
            //OleDbConnection con = new OleDbConnection(@filelocation);
            OleDbCommand cmd = new OleDbCommand();
            cmd.Connection = conn;
            cmd.CommandText = command;
            cmd.Parameters.AddRange(parameter);
            cmd.CommandType = CommandType.Text;
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();
        }

        private void InsertAllInvoiceItems()
        {
            for (int controlIndex = 1; controlIndex <= 19; controlIndex++)
            {

                string name = "txtDescription" + controlIndex;
                TextBox txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedproductName = txtBox.Text;
                name = "txtqty" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedquantity = txtBox.Text;
                name = "cbUOM" + controlIndex;
                ComboBox cmb = this.Controls.Find(name, true)[0] as ComboBox;
                string uom = cmb.Text;
                name = "txtPrice" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedprice = txtBox.Text;
                name = "txtGrossAmt" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedGrossAmt = txtBox.Text;
                name = "txtVAT" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedvat = txtBox.Text;
                name = "txtVatAmt" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedVATamt = txtBox.Text;
                name = "txtTotal" + controlIndex;
                txtBox = this.Controls.Find(name, true)[0] as TextBox;
                string insertedtotal = txtBox.Text;
                if (!string.IsNullOrEmpty(insertedproductName))
                {
                    int insertedProductId = GetProductId(insertedproductName);
                    //InsertIntoInvoiceItems(txtInvoice.Text.Trim(), insertedProductId, insertedquantity, insertedprice, insertedGrossAmt, insertedvat, insertedVATamt, insertedtotal);
                    InsertIntoInvoiceItems(txtInvoice.Text.Trim(), insertedProductId, insertedquantity, uom, insertedprice, insertedGrossAmt, insertedvat, insertedVATamt, insertedtotal);
                }
            }
        }

        private void InsertIntoInvoiceItems(string invoiceNumber, int productId, string quantity, string uom, string price, string GrossAmt, string vat, string vatamount, string total)
        {
            string InsertInvoiceItems = "INSERT INTO InvoiceItems(InvoiceNumber,ProductId ,Quantity,UOM ,UnitPrice,GrossAmount,VAT,VatAmount,Total)VALUES (@InvoiceNumber,@ProductId,@Quantity,@Uom,@UnitPrice,@GrossAmount,@VAT,@VatAmount,@Total);";
            OleDbParameter[] paramet = new OleDbParameter[9];
            paramet[0] = new OleDbParameter("@InvoiceNumber", invoiceNumber);
            paramet[1] = new OleDbParameter("@ProductId", productId);
            paramet[2] = new OleDbParameter("@Quantity", quantity);
            paramet[3] = new OleDbParameter("@Uom", uom);
            paramet[4] = new OleDbParameter("@UnitPrice", price);
            paramet[5] = new OleDbParameter("@GrossAmount", GrossAmt);
            paramet[6] = new OleDbParameter("@VAT", vat);
            paramet[7] = new OleDbParameter("@VatAmount", vatamount);
            paramet[8] = new OleDbParameter("@Total", total);
            ExecuteOtherGoodsDatabaseTransaction(InsertInvoiceItems, paramet);
        }

        private void InsertIntoInvoiceItems(string invoiceNumber, int productId, string quantity, string price, string GrossAmt, string vat, string vatamount, string total)
        {
            string InsertInvoiceItems = "INSERT INTO InvoiceItems(InvoiceNumber,ProductId ,Quantity ,UnitPrice,GrossAmount,VAT,VatAmount,Total)VALUES (@InvoiceNumber,@ProductId,@Quantity,@UnitPrice,@GrossAmount,@VAT,@VatAmount,@Total);";
            OleDbParameter[] paramet = new OleDbParameter[8];
            paramet[0] = new OleDbParameter("@InvoiceNumber", invoiceNumber);
            paramet[1] = new OleDbParameter("@ProductId", productId);
            paramet[2] = new OleDbParameter("@Quantity", quantity);
            paramet[3] = new OleDbParameter("@UnitPrice", price);
            paramet[4] = new OleDbParameter("@GrossAmount", GrossAmt);
            paramet[5] = new OleDbParameter("@VAT", vat);
            paramet[6] = new OleDbParameter("@VatAmount", vatamount);
            paramet[7] = new OleDbParameter("@Total", total);
            ExecuteOtherGoodsDatabaseTransaction(InsertInvoiceItems, paramet);
        }


        private int GetProductId(string name)
        {
            int productId = 0;
            try
            {
                productId = fetchProductId(name);
                if (productId == 0)
                {
                    if (insertProduct(name))
                    {
                        Thread.Sleep(750);
                        productId = fetchProductId(name);
                    }
                }
            }
            catch (Exception ex)
            {

            }
            return productId;
        }

        private bool insertProduct(string name)
        {
            bool isInsert = false;
            string connectionstring = ConfigurationManager.AppSettings["FilePath"].ToString();
            string getproductid = "INSERT INTO Products(ProductName) VALUES('" + name.ToString().ToUpper() + "')";
            OleDbConnection oledproductidcon = new OleDbConnection(connectionstring);
            //OleDbConnection c2 = new OleDbConnection(co);
            if (oledproductidcon.State == ConnectionState.Open)
            {
                oledproductidcon.Close();
            }
            oledproductidcon.Open();

            OleDbCommand oledbproductcmd = new OleDbCommand(getproductid, oledproductidcon);
            int rows = oledbproductcmd.ExecuteNonQuery();
            if (rows > 0)
            {
                isInsert = true;
            }
            return isInsert;
        }


        private int fetchProductId(string name)
        {
            int returnProductId = 0;
            string connectionstring = ConfigurationManager.AppSettings["FilePath"].ToString();
            string getproductid = "SELECT ProductId FROM Products  where lcase(ProductName)='" + name.ToLower().ToString() + "'";
            OleDbConnection oledproductidcon = new OleDbConnection(connectionstring);
            //OleDbConnection c2 = new OleDbConnection(co);
            if (oledproductidcon.State == ConnectionState.Open)
            {
                oledproductidcon.Close();
            }
            oledproductidcon.Open();

            OleDbCommand oledbproductcmd = new OleDbCommand(getproductid, oledproductidcon);
            object obj = oledbproductcmd.ExecuteScalar();
            if (obj != null)
            {

                returnProductId = int.Parse(obj.ToString());
            }
            oledproductidcon.Close();
            return returnProductId;
        }


        private DataTable getqtyandprice(string name)
        {
            // CommandText = @"SELECT i.Quantity,i.UnitPrice FROM InvoiceItems i INNER JOIN (Products INNER JOIN "
            //+ " InvoiceItems ON Products.ProductId = InvoiceItems.ProductId) ON TAXINVOICE.INVOICENO = "
            //+ " InvoiceItems.InvoiceNumber WHERE TAXINVOICE.CUSTOMERNAME = '" + customerName + "'";

            string s = "SELECT top 1 InvoiceItems.Quantity, InvoiceItems.UnitPrice,InvoiceItems.UOM ,InvoiceItems.Total FROM TAXINVOICE INNER JOIN (InvoiceItems INNER JOIN Products ON InvoiceItems.ProductId = Products.ProductId) ON TAXINVOICE.INVOICENO = InvoiceItems.InvoiceNumber WHERE TAXINVOICE.customername ='" + txtCustName.Text.ToString() + "' AND Products.ProductName ='" + name.ToString() + " 'order by TAXINVOICE.invoiceno desc";

            //string s = "SELECT i.UnitPrice FROM Products p INNER JOIN InvoiceItems i on p.ProductId = i.ProductId where ProductName='" + name.ToString() + "'";

            string @filelocations = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbConnection connections = new OleDbConnection(@filelocations);

            //OleDbConnection qpcon = new OleDbConnection();
            OleDbCommand qpcmd = new OleDbCommand(s, connections);

            OleDbDataAdapter qpdatadpter = new OleDbDataAdapter(qpcmd);
            //DataSet datset = new DataSet();
            DataTable qpdataset = new DataTable();
            qpdatadpter.Fill(qpdataset);
            return qpdataset;
        }

        private void Quantity_Changed(object sender, EventArgs e)
        {
            TextBox txtqty = (TextBox)sender;
            string txtName = txtqty.Name.Replace("txtqty", "");
            //GetAndCalculateTotal(txtqty.Name.Substring(txtqty.Name.Length - 1));
            GetAndCalculateTotal(txtName);
        }

        private void Price_Changed(object sender, EventArgs e)
        {
            TextBox txtqty = (TextBox)sender;
            string txtName = txtqty.Name.Replace("txtPrice", "");
            //GetAndCalculateTotal(txtqty.Name.Substring(txtqty.Name.Length - 1));
            GetAndCalculateTotal(txtName);
        }

        private decimal CalculateGrossAmt(decimal qty, decimal price)
        {

            decimal value = qty * price;
            return value;

        }
        private void TextBoxAcceptOnlyNumbers(object sender, KeyPressEventArgs e)
        {

            if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && e.KeyChar != '.')
            {
                e.Handled = true;
            }
            if (e.KeyChar == '.' && (sender as TextBox).Text.IndexOf('.') > -1)
            {
                e.Handled = true;
            }
        }
        private decimal CalculateVATAmt(decimal GrossAmt, decimal vat)
        {
            //int vat = 5;
            decimal value = ((GrossAmt * vat) / 100);
            return value;

        }
        private decimal CalculateTotal(decimal GrossAmt, decimal totalamount)
        {
            //int vat = 5;
            decimal value = GrossAmt + totalamount;
            return value;

        }




        private void GetAndCalculateTotal(string selectedNumber)
        {
            decimal qtyValue = 0;
            decimal priceValue = 0;
            //decimal discValue = 0;
            string ItemVal = "";
            decimal GrossAmt = 0;
            decimal totalamount = 0;
            decimal vatpercent = 0;
            switch (selectedNumber)
            {
                case "1":
                    qtyValue = String.IsNullOrEmpty(txtqty1.Text) ? 0 : decimal.Parse(txtqty1.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice1.Text) ? 0 : decimal.Parse(txtPrice1.Text.Trim());
                    txtGrossAmt1.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt1.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT1.Text) ? 0 : decimal.Parse(txtVAT1.Text.Trim());
                    txtVatAmt1.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt1.Text);
                    txtTotal1.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");

                    break;
                case "2":
                    qtyValue = String.IsNullOrEmpty(txtqty2.Text) ? 0 : decimal.Parse(txtqty2.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice2.Text) ? 0 : decimal.Parse(txtPrice2.Text.Trim());
                    txtGrossAmt2.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt2.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT2.Text) ? 0 : decimal.Parse(txtVAT2.Text.Trim());
                    txtVatAmt2.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt2.Text);
                    txtTotal2.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");

                    // lblTotal.Text = (decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal2.Text.Trim())).ToString();
                    break;
                case "3":
                    qtyValue = String.IsNullOrEmpty(txtqty3.Text) ? 0 : decimal.Parse(txtqty3.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice3.Text) ? 0 : decimal.Parse(txtPrice3.Text.Trim());
                    txtGrossAmt3.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt3.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT3.Text) ? 0 : decimal.Parse(txtVAT3.Text.Trim());
                    txtVatAmt3.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt3.Text);
                    txtTotal3.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal3.Text.Trim()).ToString();
                    break;
                case "4":
                    qtyValue = String.IsNullOrEmpty(txtqty4.Text) ? 0 : decimal.Parse(txtqty4.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice4.Text) ? 0 : decimal.Parse(txtPrice4.Text.Trim());
                    txtGrossAmt4.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt4.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT4.Text) ? 0 : decimal.Parse(txtVAT4.Text.Trim());
                    txtVatAmt4.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt4.Text);
                    txtTotal4.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //tbFTotal4.Text = CalculateTotal(qtyValue, priceValue, discValue).ToString();
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal4.Text.Trim()).ToString();
                    break;
                case "5":
                    qtyValue = String.IsNullOrEmpty(txtqty5.Text) ? 0 : decimal.Parse(txtqty5.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice5.Text) ? 0 : decimal.Parse(txtPrice5.Text.Trim());
                    txtGrossAmt5.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt5.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT5.Text) ? 0 : decimal.Parse(txtVAT5.Text.Trim());
                    txtVatAmt5.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt5.Text);
                    txtTotal5.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //  lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal5.Text.Trim()).ToString();
                    break;
                case "6":
                    qtyValue = String.IsNullOrEmpty(txtqty6.Text) ? 0 : decimal.Parse(txtqty6.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice6.Text) ? 0 : decimal.Parse(txtPrice6.Text.Trim());
                    txtGrossAmt6.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt6.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT6.Text) ? 0 : decimal.Parse(txtVAT6.Text.Trim());
                    txtVatAmt6.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt6.Text);
                    txtTotal6.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal6.Text.Trim()).ToString();
                    break;
                case "7":
                    qtyValue = String.IsNullOrEmpty(txtqty7.Text) ? 0 : decimal.Parse(txtqty7.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice7.Text) ? 0 : decimal.Parse(txtPrice7.Text.Trim());
                    txtGrossAmt7.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt7.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT7.Text) ? 0 : decimal.Parse(txtVAT7.Text.Trim());
                    txtVatAmt7.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt7.Text);
                    txtTotal7.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal7.Text.Trim()).ToString();
                    break;
                case "8":
                    qtyValue = String.IsNullOrEmpty(txtqty8.Text) ? 0 : decimal.Parse(txtqty8.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice8.Text) ? 0 : decimal.Parse(txtPrice8.Text.Trim());
                    txtGrossAmt8.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt8.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT8.Text) ? 0 : decimal.Parse(txtVAT8.Text.Trim());
                    txtVatAmt8.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt8.Text);
                    txtTotal8.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal8.Text.Trim()).ToString();
                    break;

                case "9":
                    qtyValue = String.IsNullOrEmpty(txtqty9.Text) ? 0 : decimal.Parse(txtqty9.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice9.Text) ? 0 : decimal.Parse(txtPrice9.Text.Trim());
                    txtGrossAmt9.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt9.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT9.Text) ? 0 : decimal.Parse(txtVAT9.Text.Trim());
                    txtVatAmt9.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt9.Text);
                    txtTotal9.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");

                    //lblTotal.Text = (decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal1.Text.Trim())).ToString();
                    break;
                case "10":
                    qtyValue = String.IsNullOrEmpty(txtqty10.Text) ? 0 : decimal.Parse(txtqty10.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice10.Text) ? 0 : decimal.Parse(txtPrice10.Text.Trim());
                    txtGrossAmt10.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt10.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT10.Text) ? 0 : decimal.Parse(txtVAT10.Text.Trim());
                    txtVatAmt10.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt10.Text);
                    txtTotal10.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = (decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal2.Text.Trim())).ToString();
                    break;
                case "11":
                    qtyValue = String.IsNullOrEmpty(txtqty11.Text) ? 0 : decimal.Parse(txtqty11.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice11.Text) ? 0 : decimal.Parse(txtPrice11.Text.Trim());
                    txtGrossAmt11.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt11.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT11.Text) ? 0 : decimal.Parse(txtVAT11.Text.Trim());
                    txtVatAmt11.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt11.Text);
                    txtTotal11.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal3.Text.Trim()).ToString();
                    break;
                case "12":
                    qtyValue = String.IsNullOrEmpty(txtqty12.Text) ? 0 : decimal.Parse(txtqty12.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice12.Text) ? 0 : decimal.Parse(txtPrice12.Text.Trim());
                    txtGrossAmt12.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt12.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT12.Text) ? 0 : decimal.Parse(txtVAT12.Text.Trim());
                    txtVatAmt12.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt12.Text);
                    txtTotal12.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //tbFTotal4.Text = CalculateTotal(qtyValue, priceValue, discValue).ToString();
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal4.Text.Trim()).ToString();
                    break;
                case "13":
                    qtyValue = String.IsNullOrEmpty(txtqty13.Text) ? 0 : decimal.Parse(txtqty13.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice13.Text) ? 0 : decimal.Parse(txtPrice13.Text.Trim());
                    txtGrossAmt13.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt13.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT13.Text) ? 0 : decimal.Parse(txtVAT13.Text.Trim());
                    txtVatAmt13.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt13.Text);
                    txtTotal13.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //  lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal5.Text.Trim()).ToString();
                    break;
                case "14":
                    qtyValue = String.IsNullOrEmpty(txtqty14.Text) ? 0 : decimal.Parse(txtqty14.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice14.Text) ? 0 : decimal.Parse(txtPrice14.Text.Trim());
                    txtGrossAmt14.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt14.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT14.Text) ? 0 : decimal.Parse(txtVAT14.Text.Trim());
                    txtVatAmt14.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt14.Text);
                    txtTotal14.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal6.Text.Trim()).ToString();
                    break;
                case "15":
                    qtyValue = String.IsNullOrEmpty(txtqty15.Text) ? 0 : decimal.Parse(txtqty15.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice15.Text) ? 0 : decimal.Parse(txtPrice15.Text.Trim());
                    txtGrossAmt15.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt15.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT15.Text) ? 0 : decimal.Parse(txtVAT15.Text.Trim());
                    txtVatAmt15.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt15.Text);
                    txtTotal15.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    //lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal7.Text.Trim()).ToString();
                    break;
                case "16":
                    qtyValue = String.IsNullOrEmpty(txtqty16.Text) ? 0 : decimal.Parse(txtqty16.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice16.Text) ? 0 : decimal.Parse(txtPrice16.Text.Trim());
                    txtGrossAmt16.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt16.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT16.Text) ? 0 : decimal.Parse(txtVAT16.Text.Trim());
                    txtVatAmt16.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt16.Text);
                    txtTotal16.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal8.Text.Trim()).ToString();
                    break;

                case "17":
                    qtyValue = String.IsNullOrEmpty(txtqty17.Text) ? 0 : decimal.Parse(txtqty17.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice17.Text) ? 0 : decimal.Parse(txtPrice17.Text.Trim());
                    txtGrossAmt17.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt17.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT17.Text) ? 0 : decimal.Parse(txtVAT17.Text.Trim());
                    txtVatAmt17.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt17.Text);
                    txtTotal17.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal8.Text.Trim()).ToString();
                    break;


                case "18":
                    qtyValue = String.IsNullOrEmpty(txtqty18.Text) ? 0 : decimal.Parse(txtqty18.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice18.Text) ? 0 : decimal.Parse(txtPrice18.Text.Trim());
                    txtGrossAmt18.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt18.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT18.Text) ? 0 : decimal.Parse(txtVAT18.Text.Trim());
                    txtVatAmt18.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt18.Text);
                    txtTotal18.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal8.Text.Trim()).ToString();
                    break;


                case "19":
                    qtyValue = String.IsNullOrEmpty(txtqty19.Text) ? 0 : decimal.Parse(txtqty19.Text.Trim());
                    priceValue = String.IsNullOrEmpty(txtPrice19.Text) ? 0 : decimal.Parse(txtPrice19.Text.Trim());
                    txtGrossAmt19.Text = ((float)CalculateGrossAmt(qtyValue, priceValue)).ToString("0.00");
                    GrossAmt = Convert.ToDecimal(txtGrossAmt19.Text);
                    vatpercent = String.IsNullOrEmpty(txtVAT19.Text) ? 0 : decimal.Parse(txtVAT19.Text.Trim());
                    txtVatAmt19.Text = ((float)CalculateVATAmt(GrossAmt, vatpercent)).ToString("0.00");
                    totalamount = Convert.ToDecimal(txtVatAmt19.Text);
                    txtTotal19.Text = ((float)CalculateTotal(GrossAmt, totalamount)).ToString("0.00");
                    // lblTotal.Text = decimal.Parse(lblTotal.Text) + decimal.Parse(tbFTotal8.Text.Trim()).ToString();
                    break;

            }

            txtTotalGrossAmt.Text = ((string.IsNullOrEmpty(txtGrossAmt1.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt1.Text.Trim())) + (string.IsNullOrEmpty(txtGrossAmt2.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt2.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt3.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt3.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt4.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt4.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt5.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt5.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt6.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt6.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt7.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt7.Text.Trim())) +
                    (string.IsNullOrEmpty(txtGrossAmt8.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt8.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt9.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt9.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt10.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt10.Text.Trim())) +
                    (string.IsNullOrEmpty(txtGrossAmt11.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt11.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt12.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt12.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt13.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt13.Text.Trim())) +
                    (string.IsNullOrEmpty(txtGrossAmt14.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt14.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt15.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt15.Text.Trim())) + (string.IsNullOrEmpty(txtGrossAmt16.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt16.Text.Trim())) +
                   (string.IsNullOrEmpty(txtGrossAmt17.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt17.Text.Trim())) + (string.IsNullOrEmpty(txtGrossAmt18.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt18.Text.Trim())) + (string.IsNullOrEmpty(txtGrossAmt19.Text.Trim()) ? 0 : decimal.Parse(txtGrossAmt19.Text.Trim()))).ToString();



            txtTotalVATAMT.Text = ((string.IsNullOrEmpty(txtVatAmt1.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt1.Text.Trim())) + (string.IsNullOrEmpty(txtVatAmt2.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt2.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt3.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt3.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt4.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt4.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt5.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt5.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt6.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt6.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt7.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt7.Text.Trim())) +
                    (string.IsNullOrEmpty(txtVatAmt8.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt8.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt9.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt9.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt10.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt10.Text.Trim())) +
                    (string.IsNullOrEmpty(txtVatAmt11.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt11.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt12.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt12.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt13.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt13.Text.Trim())) +
                    (string.IsNullOrEmpty(txtVatAmt14.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt14.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt15.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt15.Text.Trim())) + (string.IsNullOrEmpty(txtVatAmt16.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt16.Text.Trim())) +
                   (string.IsNullOrEmpty(txtVatAmt17.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt17.Text.Trim())) + (string.IsNullOrEmpty(txtVatAmt18.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt18.Text.Trim())) + (string.IsNullOrEmpty(txtVatAmt19.Text.Trim()) ? 0 : decimal.Parse(txtVatAmt19.Text.Trim()))).ToString();



            txtTotals.Text = ((string.IsNullOrEmpty(txtTotal1.Text.Trim()) ? 0 : decimal.Parse(txtTotal1.Text.Trim())) + (string.IsNullOrEmpty(txtTotal2.Text.Trim()) ? 0 : decimal.Parse(txtTotal2.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal3.Text.Trim()) ? 0 : decimal.Parse(txtTotal3.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal4.Text.Trim()) ? 0 : decimal.Parse(txtTotal4.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal5.Text.Trim()) ? 0 : decimal.Parse(txtTotal5.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal6.Text.Trim()) ? 0 : decimal.Parse(txtTotal6.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal7.Text.Trim()) ? 0 : decimal.Parse(txtTotal7.Text.Trim())) +
                    (string.IsNullOrEmpty(txtTotal8.Text.Trim()) ? 0 : decimal.Parse(txtTotal8.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal9.Text.Trim()) ? 0 : decimal.Parse(txtTotal9.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal10.Text.Trim()) ? 0 : decimal.Parse(txtTotal10.Text.Trim())) +
                    (string.IsNullOrEmpty(txtTotal11.Text.Trim()) ? 0 : decimal.Parse(txtTotal11.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal12.Text.Trim()) ? 0 : decimal.Parse(txtTotal12.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal13.Text.Trim()) ? 0 : decimal.Parse(txtTotal13.Text.Trim())) +
                    (string.IsNullOrEmpty(txtTotal14.Text.Trim()) ? 0 : decimal.Parse(txtTotal14.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal15.Text.Trim()) ? 0 : decimal.Parse(txtTotal15.Text.Trim())) + (string.IsNullOrEmpty(txtTotal16.Text.Trim()) ? 0 : decimal.Parse(txtTotal16.Text.Trim())) +
                   (string.IsNullOrEmpty(txtTotal17.Text.Trim()) ? 0 : decimal.Parse(txtTotal17.Text.Trim())) + (string.IsNullOrEmpty(txtTotal18.Text.Trim()) ? 0 : decimal.Parse(txtTotal18.Text.Trim())) + (string.IsNullOrEmpty(txtTotal19.Text.Trim()) ? 0 : decimal.Parse(txtTotal19.Text.Trim()))).ToString();


            txtGrandTotal.Text = txtFinalAmt.Text;


            txtFinalAmt.Text = txtTotals.Text;
            //lbltotalamount.Text = txtTotals.Text;
            //decimal b = String.IsNullOrEmpty(txtTotals.Text) ? 0 : decimal.Parse(txtTotals.Text.Trim());
            //decimal a = String.IsNullOrEmpty(lblOldBal.Text) ? 0 : decimal.Parse(lblOldBal.Text.Trim());
            //txtFinalAmt.Text = (a+b).ToString();
            //txtGrandTotal.Text = (a + b).ToString();
            //finalcalculation();
            //finalbill();
            roundoff();

        }
        public void roundoff()
        {
            string outPut = "0";
            text = txtFinalAmt.Text;
            decimal value;

            if (decimal.TryParse(text, out value))
            {
                if (value.ToString().Split('.').Length == 2)
                {
                    outPut = value.ToString().Split('.')[1].Substring(0, value.ToString().Split('.')[1].Length);
                }

                if (Convert.ToInt32(outPut) >= 50)
                {
                    value = Convert.ToInt32(value.ToString().Split('.')[0].Substring(0, value.ToString().Split('.')[0].Length)) + 1;
                }
                //else if (Convert.ToInt32(outPut) == 0)
                //{
                //    value = 0;
                //}
                else
                {
                    value = Convert.ToInt32(value.ToString().Split('.')[0].Substring(0, value.ToString().Split('.')[0].Length));
                }

                //value = Math.Round(value);
                decimal x = String.IsNullOrEmpty(txtFinalAmt.Text) ? 0 : decimal.Parse(txtFinalAmt.Text.Trim());
                decimal y = (x - value);
                if (x <= value)
                {
                    string var = y.ToString();
                    var = var.Replace("-", "");
                    txtRoundOff.Text = "+ " + var;
                    //decimal add1 = Convert.ToDecimal(var);
                    ////decimal add2 = String.IsNullOrEmpty(txtGrandTotal.Text) ? 0 : decimal.Parse(txtGrandTotal.Text.Trim());
                    //decimal add3 = String.IsNullOrEmpty(txtFinalAmt.Text) ? 0 : decimal.Parse(txtFinalAmt.Text.Trim());
                    //decimal sum = add3 + add1;
                    text = value.ToString();
                    txtGrandTotal.Text = text.ToString();
                }
                else
                {
                    string var = y.ToString();
                    var = var.Replace("+", "");
                    txtRoundOff.Text = "- " + var;
                    //decimal add1 = Convert.ToDecimal(var);
                    ////decimal add2 = String.IsNullOrEmpty(txtGrandTotal.Text) ? 0 : decimal.Parse(txtGrandTotal.Text.Trim());
                    //decimal add3 = String.IsNullOrEmpty(txtFinalAmt.Text) ? 0 : decimal.Parse(txtFinalAmt.Text.Trim());
                    //decimal sum = add3 - add1;
                    text = value.ToString();
                    txtGrandTotal.Text = text.ToString();
                }

                //text = value.ToString();

            }
        }



        private void txtTransport_TextChanged(object sender, EventArgs e)
        {
            //int a = Convert.ToInt32(txtTransport.Text);
            decimal a = String.IsNullOrEmpty(txtTransport.Text) ? 0 : decimal.Parse(txtTransport.Text.Trim());
            decimal b = String.IsNullOrEmpty(txtOthers.Text) ? 0 : decimal.Parse(txtOthers.Text.Trim());
            decimal c = String.IsNullOrEmpty(txtTotals.Text) ? 0 : decimal.Parse(txtTotals.Text.Trim());
            // decimal d = String.IsNullOrEmpty(lblOldBal.Text) ? 0 : decimal.Parse(lblOldBal.Text.Trim());
            txtFinalAmt.Text = (a + b + c).ToString();
            //txtGrandTotal.Text = (a + b + c).ToString();
            roundoff();

        }

        private void txtOthers_TextChanged(object sender, EventArgs e)
        {
            decimal a = String.IsNullOrEmpty(txtTransport.Text) ? 0 : decimal.Parse(txtTransport.Text.Trim());
            decimal b = String.IsNullOrEmpty(txtOthers.Text) ? 0 : decimal.Parse(txtOthers.Text.Trim());
            decimal c = String.IsNullOrEmpty(txtTotals.Text) ? 0 : decimal.Parse(txtTotals.Text.Trim());
            //decimal d = String.IsNullOrEmpty(lblOldBal.Text) ? 0 : decimal.Parse(lblOldBal.Text.Trim());
            txtFinalAmt.Text = (a + b + c).ToString();
            //txtGrandTotal.Text = (a + b + c).ToString();
            roundoff();
        }

        public string rupeestoword(Int64 rupee)
        {
            string result = "";
            Int64 res;
            if ((rupees / 10000000) > 0)
            {
                res = rupees / 10000000;
                rupees = rupees % 10000000;
                result = result + ' ' + rupeestowords(res) + " Crore";
            }
            if ((rupees / 100000) > 0)
            {
                res = rupees / 100000;
                rupees = rupees % 100000;
                result = result + ' ' + rupeestowords(res) + " Lack";
            }
            if ((rupees / 1000) > 0)
            {
                res = rupees / 1000;
                rupees = rupees % 1000;
                result = result + ' ' + rupeestowords(res) + " Thousand";
            }
            if ((rupees / 100) > 0)
            {
                res = rupees / 100;
                rupees = rupees % 100;
                result = result + ' ' + rupeestowords(res) + " Hundred";
            }
            if ((rupees % 10) >= 0)
            {
                res = rupees % 100;
                result = result + " " + rupeestowords(res);
            }
            result = result + ' ' + " Rupees only";
            return result;
        }
        public string rupeestowords(Int64 rupees)
        {
            string result = "";
            if ((rupees >= 1) && (rupees <= 10))
            {
                if ((rupees % 10) == 1) result = "One";
                if ((rupees % 10) == 2) result = "Two";
                if ((rupees % 10) == 3) result = "Three";
                if ((rupees % 10) == 4) result = "Four";
                if ((rupees % 10) == 5) result = "Five";
                if ((rupees % 10) == 6) result = "Six";
                if ((rupees % 10) == 7) result = "Seven";
                if ((rupees % 10) == 8) result = "Eight";
                if ((rupees % 10) == 9) result = "Nine";
                if ((rupees % 10) == 0) result = "Ten";
            }
            if (rupees > 9 && rupees < 20)
            {
                if (rupees == 11) result = "Eleven";
                if (rupees == 12) result = "Twelve";
                if (rupees == 13) result = "Thirteen";
                if (rupees == 14) result = "Forteen";
                if (rupees == 15) result = "Fifteen";
                if (rupees == 16) result = "Sixteen";
                if (rupees == 17) result = "Seventeen";
                if (rupees == 18) result = "Eighteen";
                if (rupees == 19) result = "Nineteen";
            }
            if (rupees > 20 && (rupees / 10) == 2 && (rupees % 10) == 0) result = "Twenty";
            if (rupees > 20 && (rupees / 10) == 3 && (rupees % 10) == 0) result = "Thirty";
            if (rupees > 20 && (rupees / 10) == 4 && (rupees % 10) == 0) result = "Forty";
            if (rupees > 20 && (rupees / 10) == 5 && (rupees % 10) == 0) result = "Fifty";
            if (rupees > 20 && (rupees / 10) == 6 && (rupees % 10) == 0) result = "Sixty";
            if (rupees > 20 && (rupees / 10) == 7 && (rupees % 10) == 0) result = "Seventy";
            if (rupees > 20 && (rupees / 10) == 8 && (rupees % 10) == 0) result = "Eighty";
            if (rupees > 20 && (rupees / 10) == 9 && (rupees % 10) == 0) result = "Ninty";

            if (rupees > 20 && (rupees / 10) == 2 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Twenty One";
                if ((rupees % 10) == 2) result = "Twenty Two";
                if ((rupees % 10) == 3) result = "Twenty Three";
                if ((rupees % 10) == 4) result = "Twenty Four";
                if ((rupees % 10) == 5) result = "Twenty Five";
                if ((rupees % 10) == 6) result = "Twenty Six";
                if ((rupees % 10) == 7) result = "Twenty Seven";
                if ((rupees % 10) == 8) result = "Twenty Eight";
                if ((rupees % 10) == 9) result = "Twenty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 3 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Thirty One";
                if ((rupees % 10) == 2) result = "Thirty Two";
                if ((rupees % 10) == 3) result = "Thirty Three";
                if ((rupees % 10) == 4) result = "Thirty Four";
                if ((rupees % 10) == 5) result = "Thirty Five";
                if ((rupees % 10) == 6) result = "Thirty Six";
                if ((rupees % 10) == 7) result = "Thirty Seven";
                if ((rupees % 10) == 8) result = "Thirty Eight";
                if ((rupees % 10) == 9) result = "Thirty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 4 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Forty One";
                if ((rupees % 10) == 2) result = "Forty Two";
                if ((rupees % 10) == 3) result = "Forty Three";
                if ((rupees % 10) == 4) result = "Forty Four";
                if ((rupees % 10) == 5) result = "Forty Five";
                if ((rupees % 10) == 6) result = "Forty Six";
                if ((rupees % 10) == 7) result = "Forty Seven";
                if ((rupees % 10) == 8) result = "Forty Eight";
                if ((rupees % 10) == 9) result = "Forty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 5 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Fifty One";
                if ((rupees % 10) == 2) result = "Fifty Two";
                if ((rupees % 10) == 3) result = "Fifty Three";
                if ((rupees % 10) == 4) result = "Fifty Four";
                if ((rupees % 10) == 5) result = "Fifty Five";
                if ((rupees % 10) == 6) result = "Fifty Six";
                if ((rupees % 10) == 7) result = "Fifty Seven";
                if ((rupees % 10) == 8) result = "Fifty Eight";
                if ((rupees % 10) == 9) result = "Fifty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 6 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Sixty One";
                if ((rupees % 10) == 2) result = "Sixty Two";
                if ((rupees % 10) == 3) result = "Sixty Three";
                if ((rupees % 10) == 4) result = "Sixty Four";
                if ((rupees % 10) == 5) result = "Sixty Five";
                if ((rupees % 10) == 6) result = "Sixty Six";
                if ((rupees % 10) == 7) result = "Sixty Seven";
                if ((rupees % 10) == 8) result = "Sixty Eight";
                if ((rupees % 10) == 9) result = "Sixty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 7 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Seventy One";
                if ((rupees % 10) == 2) result = "Seventy Two";
                if ((rupees % 10) == 3) result = "Seventy Three";
                if ((rupees % 10) == 4) result = "Seventy Four";
                if ((rupees % 10) == 5) result = "Seventy Five";
                if ((rupees % 10) == 6) result = "Seventy Six";
                if ((rupees % 10) == 7) result = "Seventy Seven";
                if ((rupees % 10) == 8) result = "Seventy Eight";
                if ((rupees % 10) == 9) result = "Seventy Nine";
            }
            if (rupees > 20 && (rupees / 10) == 8 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Eighty One";
                if ((rupees % 10) == 2) result = "Eighty Two";
                if ((rupees % 10) == 3) result = "Eighty Three";
                if ((rupees % 10) == 4) result = "Eighty Four";
                if ((rupees % 10) == 5) result = "Eighty Five";
                if ((rupees % 10) == 6) result = "Eighty Six";
                if ((rupees % 10) == 7) result = "Eighty Seven";
                if ((rupees % 10) == 8) result = "Eighty Eight";
                if ((rupees % 10) == 9) result = "Eighty Nine";
            }
            if (rupees > 20 && (rupees / 10) == 9 && (rupees % 10) != 0)
            {
                if ((rupees % 10) == 1) result = "Ninty One";
                if ((rupees % 10) == 2) result = "Ninty Two";
                if ((rupees % 10) == 3) result = "Ninty Three";
                if ((rupees % 10) == 4) result = "Ninty Four";
                if ((rupees % 10) == 5) result = "Ninty Five";
                if ((rupees % 10) == 6) result = "Ninty Six";
                if ((rupees % 10) == 7) result = "Ninty Seven";
                if ((rupees % 10) == 8) result = "Ninty Eight";
                if ((rupees % 10) == 9) result = "Ninty Nine";
            }
            return result;
        }

        private void FillInvoiceID()
        {
            string con = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbConnection c1 = new OleDbConnection(con);
            if (c1.State == ConnectionState.Open)
            {
                c1.Close();
            }
            c1.Open();
            //string retInvoiceIDQuery = "SELECT Max(INVOICENO) as INVOICENO FROM TAXINVOICE";
           string retInvoiceIDQuery = "SELECT Max(INVOICENO) as INVOICENO, Max(CurrentYear) as CurrentYear, Max(CreatedOn) as CreatedOn FROM TAXINVOICE";
            //string retInvoiceIDQuery = "SELECT Max(CreatedOn) as CreatedOn FROM TAXINVOICE";
            OleDbCommand commd = new OleDbCommand(retInvoiceIDQuery, c1);
            OleDbDataAdapter datadp = new OleDbDataAdapter(commd);
            DataTable datset = new DataTable();
            datadp.Fill(datset);
            if (datset.Rows[0][0] != null && string.IsNullOrEmpty(datset.Rows[0][0].ToString()))
            {
                datset.Rows[0][0] = "0";
            }

            OleDbDataAdapter cmdNew = new OleDbDataAdapter("SELECT CreatedOn FROM TAXINVOICE where createdon=#" + datset.Rows[0]["CreatedOn"].ToString() + "#", c1);
            DataTable dtCreatedOn = new DataTable();
            cmdNew.Fill(dtCreatedOn);


            int existedYear = Convert.ToInt32(datset.Rows[0]["CurrentYear"].ToString());
            int currentYear = DateTime.Now.Year;
            int currentMonth = DateTime.Now.Month;

            if (dtCreatedOn.Rows.Count == 1 && existedYear == currentYear && currentMonth == 4)
            {
                //DateTime cnvCreated = Convert.ToDateTime(dtCreatedOn.Rows[0]["CreatedOn"].ToString());
                //if (cnvCreated.Day == 1)
                //{

                //}
                //else
                //{
                //    invoice = 1;
                //}
                invoice = 1;
            }
            //if (existedYear == currentYear && currentMonth == 4)
            //{
            //    invoice = 1;
            //}
            else
            {
                if (dtCreatedOn.Rows.Count == 0)
                {
                    invoice = 1;
                }
                else
                {
                    invoice = Convert.ToInt32(datset.Rows[0]["INVOICENO"].ToString()) + 1;
                }
            }
            txtInvoice.Text = invoice.ToString();
            c1.Close();
        }

        private void txtDescription1_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset1 = new DataTable();
            if (!txtDescription1.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT1.Text = "5";
                txtSno1.Text = "1";

            }
            else if (!txtDescription1.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                //txtVAT1.Text = "";
                //txtSno1.Text = "";
                //txtVatAmt1.Text = "";
                //txtVAT1.Text = "";
                //txtTotal1.Text = "";
                //txtqty1.Text = "";
                //txtPrice1.Text = "";
                //txtGrossAmt1.Text = "";
                txtVAT1.Text = "2";
                txtSno1.Text = "1";
            }
            else
            {
                txtVAT1.Text = "";
                txtSno1.Text = "";
                txtVatAmt1.Text = "";
                txtVAT1.Text = "";
                txtTotal1.Text = "";
                txtqty1.Text = "";
                txtPrice1.Text = "";
                txtGrossAmt1.Text = "";

            }

            string desname = txtDescription1.Text.ToString();
            qpdataset1 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");
            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset1.Rows.Count > 0)
                {
                    ////txtqty1.Text = qpdataset1.Rows[0]["Quantity"].ToString();
                    //if (qpdataset1.Rows[0]["UnitPrice"].ToString().Contains("."))
                    //{
                    //    txtPrice1.Text = qpdataset1.Rows[0]["UnitPrice"].ToString();
                    //}
                    //else
                    //{
                    //    txtPrice1.Text = qpdataset1.Rows[0]["UnitPrice"].ToString() + ".00";
                    //}
                    txtPrice1.Text = qpdataset1.Rows[0]["UnitPrice"].ToString();
                    cbUOM1.Text = qpdataset1.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription2_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset2 = new DataTable();
            if (!txtDescription2.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT2.Text = "5";
                txtSno2.Text = "2";
            }
            else if (!txtDescription2.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT2.Text = "2";
                txtSno2.Text = "2";
            }
            else
            {

                txtVAT2.Text = "";
                txtSno2.Text = "";
                txtVatAmt2.Text = "";
                txtVAT2.Text = "";
                txtTotal2.Text = "";
                txtqty2.Text = "";
                txtPrice2.Text = "";
                txtGrossAmt2.Text = "";
            }
            string desname = txtDescription2.Text.ToString();
            qpdataset2 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");
            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {



                if (qpdataset2.Rows.Count > 0)
                {
                    //txtqty2.Text = qpdataset2.Rows[0]["Quantity"].ToString();
                    txtPrice2.Text = qpdataset2.Rows[0]["UnitPrice"].ToString();
                    cbUOM2.Text = qpdataset2.Rows[0]["UOM"].ToString();


                }
            }
        }

        private void txtDescription3_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset3 = new DataTable();
            if (!txtDescription3.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT3.Text = "5";
                txtSno3.Text = "3";
            }
            else if (!txtDescription3.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT3.Text = "2";
                txtSno3.Text = "3";
                //txtVAT3.Text = "";
                //txtSno3.Text = "";
                //txtVatAmt3.Text = "";
                //txtVAT3.Text = "";
                //txtTotal3.Text = "";
                //txtqty3.Text = "";
                //txtPrice3.Text = "";
                //txtGrossAmt3.Text = "";
            }
            else
            {
                txtVAT3.Text = "";
                txtSno3.Text = "";
                txtVatAmt3.Text = "";
                txtVAT3.Text = "";
                txtTotal3.Text = "";
                txtqty3.Text = "";
                txtPrice3.Text = "";
                txtGrossAmt3.Text = "";
            }
            string desname = txtDescription3.Text.ToString();
            qpdataset3 = getqtyandprice(desname);

            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset3.Rows.Count > 0)
                {
                    // txtqty3.Text = qpdataset3.Rows[0]["Quantity"].ToString();
                    txtPrice3.Text = qpdataset3.Rows[0]["UnitPrice"].ToString();
                    cbUOM3.Text = qpdataset3.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription4_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset4 = new DataTable();
            if (!txtDescription4.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT4.Text = "5";
                txtSno4.Text = "4";
            }
            else if (!txtDescription4.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT4.Text = "2";
                txtSno4.Text = "4";
                //txtVAT4.Text = "";
                //txtSno4.Text = "";
                //txtVatAmt4.Text = "";
                //txtVAT4.Text = "";
                //txtTotal4.Text = "";
                //txtqty4.Text = "";
                //txtPrice4.Text = "";
                //txtGrossAmt4.Text = "";
            }
            else
            {
                txtVAT4.Text = "";
                txtSno4.Text = "";
                txtVatAmt4.Text = "";
                txtVAT4.Text = "";
                txtTotal4.Text = "";
                txtqty4.Text = "";
                txtPrice4.Text = "";
                txtGrossAmt4.Text = "";
            }

            string desname = txtDescription4.Text.ToString();
            qpdataset4 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");
            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset4.Rows.Count > 0)
                {
                    //txtqty4.Text = qpdataset4.Rows[0]["Quantity"].ToString();
                    txtPrice4.Text = qpdataset4.Rows[0]["UnitPrice"].ToString();
                    cbUOM4.Text = qpdataset4.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription5_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset5 = new DataTable();
            if (!txtDescription5.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT5.Text = "5";
                txtSno5.Text = "5";
            }
            else if (!txtDescription5.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT5.Text = "2";
                txtSno5.Text = "5";
                //txtVAT5.Text = "";
                //txtSno5.Text = "";
                //txtVatAmt5.Text = "";
                //txtVAT5.Text = "";
                //txtTotal5.Text = "";
                //txtqty5.Text = "";
                //txtPrice5.Text = "";
                //txtGrossAmt5.Text = "";
            }
            else
            {
                txtVAT5.Text = "";
                txtSno5.Text = "";
                txtVatAmt5.Text = "";
                txtVAT5.Text = "";
                txtTotal5.Text = "";
                txtqty5.Text = "";
                txtPrice5.Text = "";
                txtGrossAmt5.Text = "";
            }
            string desname = txtDescription5.Text.ToString();

            qpdataset5 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset5.Rows.Count > 0)
                {
                    //txtqty5.Text = qpdataset5.Rows[0]["Quantity"].ToString();
                    txtPrice5.Text = qpdataset5.Rows[0]["UnitPrice"].ToString();
                    cbUOM5.Text = qpdataset5.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription6_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset6 = new DataTable();
            if (!txtDescription6.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT6.Text = "5";
                txtSno6.Text = "6";
            }
            else if (!txtDescription6.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT6.Text = "2";
                txtSno6.Text = "6";
                //txtVAT6.Text = "";
                //txtSno6.Text = "";
                //txtVatAmt6.Text = "";
                //txtVAT6.Text = "";
                //txtTotal6.Text = "";
                //txtqty6.Text = "";
                //txtPrice6.Text = "";
                //txtGrossAmt6.Text = "";
            }
            else
            {
                txtVAT6.Text = "";
                txtSno6.Text = "";
                txtVatAmt6.Text = "";
                txtVAT6.Text = "";
                txtTotal6.Text = "";
                txtqty6.Text = "";
                txtPrice6.Text = "";
                txtGrossAmt6.Text = "";
            }
            string desname = txtDescription6.Text.ToString();

            qpdataset6 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset6.Rows.Count > 0)
                {
                    // txtqty6.Text = qpdataset6.Rows[0]["Quantity"].ToString();
                    txtPrice6.Text = qpdataset6.Rows[0]["UnitPrice"].ToString();
                    cbUOM6.Text = qpdataset6.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription7_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset7 = new DataTable();
            if (!txtDescription7.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT7.Text = "5";
                txtSno7.Text = "7";
            }
            else if (!txtDescription7.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT7.Text = "2";
                txtSno7.Text = "7";
                //txtVAT7.Text = "";
                //txtSno7.Text = "";
                //txtVatAmt7.Text = "";
                //txtVAT7.Text = "";
                //txtTotal7.Text = "";
                //txtqty7.Text = "";
                //txtPrice7.Text = "";
                //txtGrossAmt7.Text = "";
            }
            else
            {
                txtVAT7.Text = "";
                txtSno7.Text = "";
                txtVatAmt7.Text = "";
                txtVAT7.Text = "";
                txtTotal7.Text = "";
                txtqty7.Text = "";
                txtPrice7.Text = "";
                txtGrossAmt7.Text = "";
            }
            string desname = txtDescription7.Text.ToString();
            qpdataset7 = getqtyandprice(desname);

            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset7.Rows.Count > 0)
                {
                    //  txtqty7.Text = qpdataset7.Rows[0]["Quantity"].ToString();
                    txtPrice7.Text = qpdataset7.Rows[0]["UnitPrice"].ToString();
                    cbUOM7.Text = qpdataset7.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription8_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset8 = new DataTable();
            if (!txtDescription8.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT8.Text = "5";
                txtSno8.Text = "8";
            }
            else if (!txtDescription8.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT8.Text = "2";
                txtSno8.Text = "8";
                //txtVAT8.Text = "";
                //txtSno8.Text = "";
                //txtVatAmt8.Text = "";
                //txtVAT8.Text = "";
                //txtTotal8.Text = "";
                //txtqty8.Text = "";
                //txtPrice8.Text = "";
                //txtGrossAmt8.Text = "";
            }
            else
            {
                txtVAT8.Text = "";
                txtSno8.Text = "";
                txtVatAmt8.Text = "";
                txtVAT8.Text = "";
                txtTotal8.Text = "";
                txtqty8.Text = "";
                txtPrice8.Text = "";
                txtGrossAmt8.Text = "";
            }
            string desname = txtDescription8.Text.ToString();

            qpdataset8 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset8.Rows.Count > 0)
                {
                    // txtqty8.Text = qpdataset8.Rows[0]["Quantity"].ToString();
                    txtPrice8.Text = qpdataset8.Rows[0]["UnitPrice"].ToString();
                    cbUOM8.Text = qpdataset8.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription9_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset9 = new DataTable();
            if (!txtDescription9.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT9.Text = "5";
                txtSno9.Text = "9";
            }
            else if (!txtDescription9.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT9.Text = "2";
                txtSno9.Text = "9";
                //txtVAT9.Text = "";
                //txtSno9.Text = "";
                //txtVatAmt9.Text = "";
                //txtVAT9.Text = "";
                //txtTotal9.Text = "";
                //txtqty9.Text = "";
                //txtPrice9.Text = "";
                //txtGrossAmt9.Text = "";
            }
            else
            {
                txtVAT9.Text = "";
                txtSno9.Text = "";
                txtVatAmt9.Text = "";
                txtVAT9.Text = "";
                txtTotal9.Text = "";
                txtqty9.Text = "";
                txtPrice9.Text = "";
                txtGrossAmt9.Text = "";
            }
            string desname = txtDescription9.Text.ToString();

            qpdataset9 = getqtyandprice(desname);

            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset9.Rows.Count > 0)
                {
                    // txtqty9.Text = qpdataset9.Rows[0]["Quantity"].ToString();
                    txtPrice9.Text = qpdataset9.Rows[0]["UnitPrice"].ToString();
                    cbUOM9.Text = qpdataset9.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription10_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset10 = new DataTable();
            if (!txtDescription10.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT10.Text = "5";
                txtSno10.Text = "10";
            }
            else if (!txtDescription10.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT10.Text = "2";
                txtSno10.Text = "10";
                //txtVAT10.Text = "";
                //txtSno10.Text = "";
                //txtVatAmt10.Text = "";
                //txtVAT10.Text = "";
                //txtTotal10.Text = "";
                //txtqty10.Text = "";
                //txtPrice10.Text = "";
                //txtGrossAmt10.Text = "";
            }
            else
            {
                txtVAT10.Text = "";
                txtSno10.Text = "";
                txtVatAmt10.Text = "";
                txtVAT10.Text = "";
                txtTotal10.Text = "";
                txtqty10.Text = "";
                txtPrice10.Text = "";
                txtGrossAmt10.Text = "";
            }

            string desname = txtDescription10.Text.ToString();

            qpdataset10 = getqtyandprice(desname);

            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset10.Rows.Count > 0)
                {
                    //txtqty10.Text = qpdataset10.Rows[0]["Quantity"].ToString();
                    txtPrice10.Text = qpdataset10.Rows[0]["UnitPrice"].ToString();
                    cbUOM10.Text = qpdataset10.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription11_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset11 = new DataTable();
            if (!txtDescription11.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT11.Text = "5";
                txtSno11.Text = "11";
            }
            else if (!txtDescription11.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT11.Text = "2";
                txtSno11.Text = "11";
                //txtVAT11.Text = "";
                //txtSno11.Text = "";
                //txtVatAmt11.Text = "";
                //txtVAT11.Text = "";
                //txtTotal11.Text = "";
                //txtqty11.Text = "";
                //txtPrice11.Text = "";
                //txtGrossAmt11.Text = "";
            }
            else
            {
                txtVAT11.Text = "";
                txtSno11.Text = "";
                txtVatAmt11.Text = "";
                txtVAT11.Text = "";
                txtTotal11.Text = "";
                txtqty11.Text = "";
                txtPrice11.Text = "";
                txtGrossAmt11.Text = "";
            }
            string desname = txtDescription11.Text.ToString();

            qpdataset11 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset11.Rows.Count > 0)
                {
                    // txtqty11.Text = qpdataset11.Rows[0]["Quantity"].ToString();
                    txtPrice11.Text = qpdataset11.Rows[0]["UnitPrice"].ToString();
                    cbUOM11.Text = qpdataset11.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription12_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset12 = new DataTable();
            if (!txtDescription12.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT12.Text = "5";
                txtSno12.Text = "12";
            }
            else if (!txtDescription12.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT12.Text = "2";
                txtSno12.Text = "12";
                //txtVAT12.Text = "";
                //txtSno12.Text = "";
                //txtVatAmt12.Text = "";
                //txtVAT12.Text = "";
                //txtTotal12.Text = "";
                //txtqty12.Text = "";
                //txtPrice12.Text = "";
                //txtGrossAmt12.Text = "";
            }
            else
            {
                txtVAT12.Text = "";
                txtSno12.Text = "";
                txtVatAmt12.Text = "";
                txtVAT12.Text = "";
                txtTotal12.Text = "";
                txtqty12.Text = "";
                txtPrice12.Text = "";
                txtGrossAmt12.Text = "";

            }
            string desname = txtDescription12.Text.ToString();
            qpdataset12 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset12.Rows.Count > 0)
                {
                    // txtqty12.Text = qpdataset12.Rows[0]["Quantity"].ToString();
                    txtPrice12.Text = qpdataset12.Rows[0]["UnitPrice"].ToString();
                    cbUOM12.Text = qpdataset12.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription13_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset13 = new DataTable();
            if (!txtDescription13.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT13.Text = "5";
                txtSno13.Text = "13";
            }
            else if (!txtDescription13.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT13.Text = "2";
                txtSno13.Text = "13";
                //txtVAT13.Text = "";
                //txtSno13.Text = "";
                //txtVatAmt13.Text = "";
                //txtVAT13.Text = "";
                //txtTotal13.Text = "";
                //txtqty13.Text = "";
                //txtPrice13.Text = "";
                //txtGrossAmt13.Text = "";
            }
            else
            {
                txtVAT13.Text = "";
                txtSno13.Text = "";
                txtVatAmt13.Text = "";
                txtVAT13.Text = "";
                txtTotal13.Text = "";
                txtqty13.Text = "";
                txtPrice13.Text = "";
                txtGrossAmt13.Text = "";
            }

            string desname = txtDescription13.Text.ToString();
            qpdataset13 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset13.Rows.Count > 0)
                {
                    // txtqty13.Text = qpdataset13.Rows[0]["Quantity"].ToString();
                    txtPrice13.Text = qpdataset13.Rows[0]["UnitPrice"].ToString();
                    cbUOM13.Text = qpdataset13.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription14_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset14 = new DataTable();
            if (!txtDescription14.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT14.Text = "5";
                txtSno14.Text = "14";
            }
            else if (!txtDescription14.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                //txtVAT14.Text = "";
                //txtSno14.Text = "";
                //txtVatAmt14.Text = "";
                //txtVAT14.Text = "";
                //txtTotal14.Text = "";
                //txtqty14.Text = "";
                //txtPrice14.Text = "";
                //txtGrossAmt14.Text = "";
                txtVAT14.Text = "2";
                txtSno14.Text = "14";
            }
            else
            {
                txtVAT14.Text = "";
                txtSno14.Text = "";
                txtVatAmt14.Text = "";
                txtVAT14.Text = "";
                txtTotal14.Text = "";
                txtqty14.Text = "";
                txtPrice14.Text = "";
                txtGrossAmt14.Text = "";
            }
            string desname = txtDescription14.Text.ToString();

            qpdataset14 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset14.Rows.Count > 0)
                {
                    // txtqty14.Text = qpdataset14.Rows[0]["Quantity"].ToString();
                    txtPrice14.Text = qpdataset14.Rows[0]["UnitPrice"].ToString();
                    cbUOM14.Text = qpdataset14.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription15_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset15 = new DataTable();
            if (!txtDescription15.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT15.Text = "5";
                txtSno15.Text = "15";
            }

            else if (!txtDescription15.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT15.Text = "2";
                txtSno15.Text = "15";
                //txtVAT15.Text = "";
                //txtSno15.Text = "";
                //txtVatAmt15.Text = "";
                //txtVAT15.Text = "";
                //txtTotal15.Text = "";
                //txtqty15.Text = "";
                //txtPrice15.Text = "";
                //txtGrossAmt15.Text = "";
            }
            else
            {
                txtVAT15.Text = "";
                txtSno15.Text = "";
                txtVatAmt15.Text = "";
                txtVAT15.Text = "";
                txtTotal15.Text = "";
                txtqty15.Text = "";
                txtPrice15.Text = "";
                txtGrossAmt15.Text = "";
            }
            string desname = txtDescription15.Text.ToString();

            qpdataset15 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset15.Rows.Count > 0)
                {
                    // txtqty15.Text = qpdataset15.Rows[0]["Quantity"].ToString();
                    txtPrice15.Text = qpdataset15.Rows[0]["UnitPrice"].ToString();
                    cbUOM15.Text = qpdataset15.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription16_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset16 = new DataTable();
            if (!txtDescription16.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT16.Text = "5";
                txtSno16.Text = "16";
            }
            else if (!txtDescription16.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT16.Text = "2";
                txtSno16.Text = "16";
                //txtVAT16.Text = "";
                //txtSno16.Text = "";
                //txtVatAmt16.Text = "";
                //txtVAT16.Text = "";
                //txtTotal16.Text = "";
                //txtqty16.Text = "";
                //txtPrice16.Text = "";
                //txtGrossAmt16.Text = "";
            }
            else
            {
                txtVAT16.Text = "";
                txtSno16.Text = "";
                txtVatAmt16.Text = "";
                txtVAT16.Text = "";
                txtTotal16.Text = "";
                txtqty16.Text = "";
                txtPrice16.Text = "";
                txtGrossAmt16.Text = "";
            }
            string desname = txtDescription16.Text.ToString();

            qpdataset16 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset16.Rows.Count > 0)
                {
                    //  txtqty16.Text = qpdataset16.Rows[0]["Quantity"].ToString();
                    txtPrice16.Text = qpdataset16.Rows[0]["UnitPrice"].ToString();
                    cbUOM16.Text = qpdataset16.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            //string co = ConfigurationManager.AppSettings["FilePath"].ToString();
            //OleDbConnection c2 = new OleDbConnection(co);
            ////OleDbConnection c2 = new OleDbConnection(co);
            //if (c2.State == ConnectionState.Open)
            //{
            //    c2.Close();
            //}
            //c2.Open();

            //string MOBILE = textBox1.Text;
            //string s1 = "SELECT * FROM TAXINVOICE where MOBILENUMBER = '" + MOBILE.ToString() + "'";
            //OleDbCommand commad = new OleDbCommand(s1, c2);
            //OleDbDataAdapter datadpter = new OleDbDataAdapter(commad);
            ////DataSet datset = new DataSet();
            //DataSet ds2 = new DataSet();
            //datadpter.Fill(ds2);
            //if (ds2.Tables[0].Rows.Count > 0)
            //{
            //    txtCustName.Text = ds2.Tables[0].Rows[0]["CUSTOMERNAME"].ToString();
            //    txtAddress.Text = ds2.Tables[0].Rows[0]["ADDRESS"].ToString();
            //    txtTINnum.Text = ds2.Tables[0].Rows[0]["TINNO"].ToString();
            //    txtPOnum.Text = ds2.Tables[0].Rows[0]["PONO"].ToString();
            //    CreatedDate.Text = ds2.Tables[0].Rows[0]["CREATEDDATE"].ToString();
            //    // IsUserExisted = 0;

            //}
            ////dataAdapter1.Dispose();
            ////cmd1.Dispose();
            ////con.Close();
        }

        private void txtDescription17_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset17 = new DataTable();
            if (!txtDescription17.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT17.Text = "5";
                txtSno17.Text = "17";
            }
            else if (!txtDescription17.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT17.Text = "2";
                txtSno17.Text = "17";
                //txtVAT17.Text = "";
                //txtSno17.Text = "";
                //txtVatAmt17.Text = "";
                //txtVAT17.Text = "";
                //txtTotal17.Text = "";
                //txtqty17.Text = "";
                //txtPrice17.Text = "";
                //txtGrossAmt17.Text = "";
            }
            else
            {
                txtVAT17.Text = "";
                txtSno17.Text = "";
                txtVatAmt17.Text = "";
                txtVAT17.Text = "";
                txtTotal17.Text = "";
                txtqty17.Text = "";
                txtPrice17.Text = "";
                txtGrossAmt17.Text = "";
            }
            string desname = txtDescription17.Text.ToString();

            qpdataset17 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {


                if (qpdataset17.Rows.Count > 0)
                {
                    // txtqty17.Text = qpdataset17.Rows[0]["Quantity"].ToString();
                    txtPrice17.Text = qpdataset17.Rows[0]["UnitPrice"].ToString();
                    cbUOM17.Text = qpdataset17.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription18_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset18 = new DataTable();
            if (!txtDescription18.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT18.Text = "5";
                txtSno18.Text = "18";
            }
            else if (!txtDescription18.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT18.Text = "2";
                txtSno18.Text = "18";
                //txtVAT18.Text = "";
                //txtSno18.Text = "";
                //txtVatAmt18.Text = "";
                //txtVAT18.Text = "";
                //txtTotal18.Text = "";
                //txtqty18.Text = "";
                //txtPrice18.Text = "";
                //txtGrossAmt18.Text = "";
            }
            else
            {
                txtVAT18.Text = "";
                txtSno18.Text = "";
                txtVatAmt18.Text = "";
                txtVAT18.Text = "";
                txtTotal18.Text = "";
                txtqty18.Text = "";
                txtPrice18.Text = "";
                txtGrossAmt18.Text = "";
            }
            string desname = txtDescription18.Text.ToString();

            qpdataset18 = getqtyandprice(desname);
            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset18.Rows.Count > 0)
                {
                    //  txtqty18.Text = qpdataset18.Rows[0]["Quantity"].ToString();
                    txtPrice18.Text = qpdataset18.Rows[0]["UnitPrice"].ToString();
                    cbUOM18.Text = qpdataset18.Rows[0]["UOM"].ToString();

                }
            }
        }

        private void txtDescription19_Leave(object sender, EventArgs e)
        {
            DataTable qpdataset19 = new DataTable();
            if (!txtDescription19.Text.Equals(String.Empty) && (comboBox1.Text.Equals("VAT SALES")))
            {
                txtVAT19.Text = "5";
                txtSno19.Text = "19";
            }
            else if (!txtDescription19.Text.Equals(String.Empty) && (comboBox1.Text.Equals("CST SALES")))
            {
                txtVAT19.Text = "2";
                txtSno19.Text = "19";

            }
            else
            {
                txtVAT19.Text = "";
                txtSno19.Text = "";
                txtVatAmt19.Text = "";
                txtVAT19.Text = "";
                txtTotal19.Text = "";
                txtqty19.Text = "";
                txtPrice19.Text = "";
                txtGrossAmt19.Text = "";
            }
            string desname = txtDescription19.Text.ToString();

            qpdataset19 = getqtyandprice(desname);

            DataSet dsCustomerChecking = GetRequiredDataTable("SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + txtCustName.Text.Trim() + "'");

            if (dsCustomerChecking.Tables[0].Rows.Count > 0)
            {

                if (qpdataset19.Rows.Count > 0)
                {
                    // txtqty19.Text = qpdataset19.Rows[0]["Quantity"].ToString();
                    txtPrice19.Text = qpdataset19.Rows[0]["UnitPrice"].ToString();
                    cbUOM19.Text = qpdataset19.Rows[0]["UOM"].ToString();

                }
            }
        }


        public bool isNumber(char ch, string text)
        {
            bool res = true;
            char decimalChar = Convert.ToChar(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator);

            //check if it´s a decimal separator and if doesn´t already have one in the text string
            if (ch == decimalChar && text.IndexOf(decimalChar) != -1)
            {
                res = false;
                return res;
            }

            //check if it´s a digit, decimal separator and backspace
            if (!Char.IsDigit(ch) && ch != decimalChar && ch != (char)Keys.Back)
                res = false;

            return res;
        }

        private void txtTransport_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtTransport.Text) ? 0 : decimal.Parse(txtTransport.Text.Trim());
            if (!txtTransport.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtTransport.Text = value.ToString();
                }
                else
                {
                    txtTransport.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtOthers_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtOthers.Text) ? 0 : decimal.Parse(txtOthers.Text.Trim());
            if (!txtOthers.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtOthers.Text = value.ToString();
                }
                else
                {
                    txtOthers.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice1_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice1.Text) ? 0 : decimal.Parse(txtPrice1.Text.Trim());
            if (!txtPrice1.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice1.Text = value.ToString();
                }
                else
                {
                    txtPrice1.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice2_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice2.Text) ? 0 : decimal.Parse(txtPrice2.Text.Trim());
            if (!txtPrice2.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice2.Text = value.ToString();
                }
                else
                {
                    txtPrice2.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice3_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice3.Text) ? 0 : decimal.Parse(txtPrice3.Text.Trim());
            if (!txtPrice3.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice3.Text = value.ToString();
                }
                else
                {
                    txtPrice3.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice4_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice4.Text) ? 0 : decimal.Parse(txtPrice4.Text.Trim());
            if (!txtPrice4.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice4.Text = value.ToString();
                }
                else
                {
                    txtPrice4.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice5_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice5.Text) ? 0 : decimal.Parse(txtPrice5.Text.Trim());
            if (!txtPrice5.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice5.Text = value.ToString();
                }
                else
                {
                    txtPrice5.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice6_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice6.Text) ? 0 : decimal.Parse(txtPrice6.Text.Trim());
            if (!txtPrice6.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice6.Text = value.ToString();
                }
                else
                {
                    txtPrice6.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice7_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice7.Text) ? 0 : decimal.Parse(txtPrice7.Text.Trim());
            if (!txtPrice7.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice7.Text = value.ToString();
                }
                else
                {
                    txtPrice7.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice8_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice8.Text) ? 0 : decimal.Parse(txtPrice8.Text.Trim());
            if (!txtPrice8.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice8.Text = value.ToString();
                }
                else
                {
                    txtPrice8.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice9_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice9.Text) ? 0 : decimal.Parse(txtPrice9.Text.Trim());
            if (!txtPrice9.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice9.Text = value.ToString();
                }
                else
                {
                    txtPrice9.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice10_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice10.Text) ? 0 : decimal.Parse(txtPrice10.Text.Trim());
            if (!txtPrice10.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice10.Text = value.ToString();
                }
                else
                {
                    txtPrice10.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice11_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice11.Text) ? 0 : decimal.Parse(txtPrice11.Text.Trim());
            if (!txtPrice11.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice11.Text = value.ToString();
                }
                else
                {
                    txtPrice11.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice12_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice12.Text) ? 0 : decimal.Parse(txtPrice12.Text.Trim());
            if (!txtPrice12.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice12.Text = value.ToString();
                }
                else
                {
                    txtPrice12.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice13_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice13.Text) ? 0 : decimal.Parse(txtPrice13.Text.Trim());
            if (!txtPrice13.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice13.Text = value.ToString();
                }
                else
                {
                    txtPrice13.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice14_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice14.Text) ? 0 : decimal.Parse(txtPrice14.Text.Trim());
            if (!txtPrice14.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice14.Text = value.ToString();
                }
                else
                {
                    txtPrice14.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice15_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice15.Text) ? 0 : decimal.Parse(txtPrice15.Text.Trim());
            if (!txtPrice15.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice15.Text = value.ToString();
                }
                else
                {
                    txtPrice15.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice16_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice16.Text) ? 0 : decimal.Parse(txtPrice16.Text.Trim());
            if (!txtPrice16.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice16.Text = value.ToString();
                }
                else
                {
                    txtPrice16.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice17_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice17.Text) ? 0 : decimal.Parse(txtPrice17.Text.Trim());
            if (!txtPrice17.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice17.Text = value.ToString();
                }
                else
                {
                    txtPrice17.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice18_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice18.Text) ? 0 : decimal.Parse(txtPrice18.Text.Trim());
            if (!txtPrice18.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice18.Text = value.ToString();
                }
                else
                {
                    txtPrice18.Text = value.ToString() + ".00";
                }
            }
        }

        private void txtPrice19_Leave(object sender, EventArgs e)
        {
            decimal value = String.IsNullOrEmpty(txtPrice19.Text) ? 0 : decimal.Parse(txtPrice19.Text.Trim());
            if (!txtPrice19.Text.Equals(String.Empty))
            {
                if (value.ToString().Contains("."))
                {
                    txtPrice19.Text = value.ToString();
                }
                else
                {
                    txtPrice19.Text = value.ToString() + ".00";
                }
            }
        }

        private void TAXINVOICE_Load_1(object sender, EventArgs e)
        {
            FillCustomerNames();
            txtCustName.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtCustName.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtCustName.AutoCompleteCustomSource = namesCollection;
        }

        private void FillCustomerNames()
        {
            namesCollection = new AutoCompleteStringCollection();
            string filelocation = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbDataReader dReader;
            OleDbConnection conn = new OleDbConnection();
            conn.ConnectionString = filelocation;
            OleDbCommand cmd = new OleDbCommand();
            cmd.Connection = conn;
            cmd.CommandType = CommandType.Text;

            cmd.CommandText = @"SELECT Distinct[CUSTOMERNAME] FROM TAXINVOICE";
            // Array namesCollection=
            //ArrayList namesCollection = new ArrayList();
            conn.Open();
            dReader = cmd.ExecuteReader();
            if (dReader.HasRows == true)
            {
                while (dReader.Read())
                    namesCollection.Add(dReader["CUSTOMERNAME"].ToString());

            }
        }
        private void FillDescriptions(string customerName)
        {
            descriptionCollection = new AutoCompleteStringCollection();
            string filelocation = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbDataReader dReader;
            OleDbConnection conn = new OleDbConnection();
            conn.ConnectionString = filelocation;
            OleDbCommand cmd = new OleDbCommand();
            cmd.Connection = conn;
            cmd.CommandType = CommandType.Text;

            cmd.CommandText = @"SELECT Products.ProductName FROM TAXINVOICE INNER JOIN (Products INNER JOIN "
            + " InvoiceItems ON Products.ProductId = InvoiceItems.ProductId) ON TAXINVOICE.INVOICENO = "
            + " InvoiceItems.InvoiceNumber WHERE TAXINVOICE.CUSTOMERNAME = '" + customerName + "'";
            // Array namesCollection=
            //ArrayList namesCollection = new ArrayList();
            conn.Open();
            dReader = cmd.ExecuteReader();
            if (dReader.HasRows == true)
            {
                while (dReader.Read())
                    descriptionCollection.Add(dReader["ProductName"].ToString());

            }

            // cmd.CommandText = @"SELECT DISTINCT InvoiceItems.Quantity,InvocieItems.UnitPrice,InvoiceItems.VAT FROM TAXINVOICE INNER JOIN (Products INNER JOIN "
            //+ " InvoiceItems ON Products.ProductId = InvoiceItems.ProductId) ON TAXINVOICE.INVOICENO = "
            //+ " InvoiceItems.InvoiceNumber WHERE TAXINVOICE.CUSTOMERNAME = '" + customerName + "'";

        }
        private DataSet GetRequiredDataTable(string query)
        {
            string connection = ConfigurationManager.AppSettings["FilePath"].ToString();
            OleDbConnection c3 = new OleDbConnection(connection);
            if (c3.State == ConnectionState.Open)
            {
                c3.Close();
            }
            c3.Open();
            OleDbDataAdapter da = new OleDbDataAdapter(query, c3);
            DataSet ds = new DataSet();
            da.Fill(ds);
            return ds;
        }
        private void txtCustName_Leave(object sender, EventArgs e)
        {
            //string connection = ConfigurationManager.AppSettings["FilePath"].ToString();
            //OleDbConnection c3 = new OleDbConnection(connection);
            //OleDbConnection c2 = new OleDbConnection(co);
            //if (c3.State == ConnectionState.Open)
            //{
            //    c3.Close();
            //}
            //c3.Open();

            string custname = txtCustName.Text;


            string string1 = "SELECT * FROM TAXINVOICE where CUSTOMERNAME = '" + custname.ToString() + "'";
            //OleDbCommand custcommand = new OleDbCommand(string1, c3);
            //OleDbDataAdapter custdatadpter = new OleDbDataAdapter(custcommand);
            //DataSet datset = new DataSet();
            //DataSet custdataset = new DataSet();
            //custdatadpter.Fill(custdataset);

            DataSet custdataset = GetRequiredDataTable("select * from TAXINVOICE where INVOICENO=(SELECT Max(INVOICENO) FROM TAXINVOICE WHERE CUSTOMERNAME='" + custname.ToString() + "')");
            if (custdataset.Tables[0].Rows.Count > 0)
            {
                txtCustName.Text = custdataset.Tables[0].Rows[0]["CUSTOMERNAME"].ToString();
                txtAddress1.Text = custdataset.Tables[0].Rows[0]["ADDRESS1"].ToString();
                txtAddress2.Text = custdataset.Tables[0].Rows[0]["ADDRESS2"].ToString();
                txtTINnum.Text = custdataset.Tables[0].Rows[0]["TINNO"].ToString();
                //txtPOnum.Text = custdataset.Tables[0].Rows[0]["PONO"].ToString();
                // CreatedDate.Text = custdataset.Tables[0].Rows[0]["CREATEDDATE"].ToString();
                comboBox1.Text = custdataset.Tables[0].Rows[0]["STATE"].ToString();
                //txtInvoice.Text = custdataset.Tables[0].Rows[0]["INVOICENO"].ToString();
                //ddlTransaction.Text = custdataset.Tables[0].Rows[0]["InvoiceType"].ToString();
                // tbTransportValue.Text = custdataset.Tables[0].Rows[0]["TRANSPORT"].ToString();

            }

            FillDescriptionsWithContent(custname);
            //dataAdapter1.Dispose();
            //cmd1.Dispose();
            //con.Close();
        }
        private void FillDescriptionsWithContent(string custname)
        {
            FillDescriptions(custname);


            txtDescription1.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription1.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription1.AutoCompleteCustomSource = descriptionCollection;

            txtDescription2.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription2.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription2.AutoCompleteCustomSource = descriptionCollection;

            txtDescription3.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription3.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription3.AutoCompleteCustomSource = descriptionCollection;

            txtDescription4.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription4.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription4.AutoCompleteCustomSource = descriptionCollection;


            txtDescription5.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription5.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription5.AutoCompleteCustomSource = descriptionCollection;

            txtDescription6.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription6.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription6.AutoCompleteCustomSource = descriptionCollection;

            txtDescription7.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription7.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription7.AutoCompleteCustomSource = descriptionCollection;

            txtDescription8.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription8.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription8.AutoCompleteCustomSource = descriptionCollection;

            txtDescription9.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription9.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription9.AutoCompleteCustomSource = descriptionCollection;

            txtDescription10.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription10.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription10.AutoCompleteCustomSource = descriptionCollection;

            txtDescription11.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription11.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription11.AutoCompleteCustomSource = descriptionCollection;

            txtDescription12.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription12.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription12.AutoCompleteCustomSource = descriptionCollection;

            txtDescription13.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription13.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription13.AutoCompleteCustomSource = descriptionCollection;

            txtDescription14.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription14.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription14.AutoCompleteCustomSource = descriptionCollection;

            txtDescription15.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription15.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription15.AutoCompleteCustomSource = descriptionCollection;

            txtDescription16.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription16.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription16.AutoCompleteCustomSource = descriptionCollection;

            txtDescription17.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription17.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription17.AutoCompleteCustomSource = descriptionCollection;

            txtDescription18.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription18.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription18.AutoCompleteCustomSource = descriptionCollection;


            txtDescription19.AutoCompleteMode = AutoCompleteMode.Suggest;
            txtDescription19.AutoCompleteSource = AutoCompleteSource.CustomSource;
            txtDescription19.AutoCompleteCustomSource = descriptionCollection;

        }

        private void txtDescription1_KeyPress(object sender, KeyPressEventArgs e)
        {
            string custname = txtCustName.Text;
        }
        private void txtVAT_TextChanged(object sender, EventArgs e)
        {
            TextBox txtVAT = (TextBox)sender;
            string txtName = txtVAT.Name.Replace("txtVAT", "");
            GetAndCalculateTotal(txtName);
        }

        private void txtInvoice_TextChanged(object sender, EventArgs e)
        {
            //int returnProductId = 0;
            //string connstring = ConfigurationManager.AppSettings["FilePath"].ToString();
            //string invoicenum = "SELECT CUSTOMERNAME FROM TAXINVOICE  where INVOICENO=" + txtInvoice.Text.ToString() + "";
            //OleDbConnection oledinvoicenum = new OleDbConnection(connstring);
            ////OleDbConnection c2 = new OleDbConnection(co);
            //if (oledinvoicenum.State == ConnectionState.Open)
            //{
            //    oledinvoicenum.Close();
            //}
            //oledinvoicenum.Open();

            //OleDbCommand oledbproductcmd = new OleDbCommand(invoicenum, oledinvoicenum);
            //object obj = oledbproductcmd.ExecuteScalar();
            //if (obj != null)
            //{
            //    if(!String.IsNullOrEmpty(obj.ToString()))
            //    {
            //        MessageBox.Show("InvoiceNo Already Exists");
            //        txtInvoice.Text = "";
            //    }
            //}
        }

        private void txtInvoice_Leave(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(txtInvoice.Text.Trim()))
            {
                string connstring = ConfigurationManager.AppSettings["FilePath"].ToString();
                string invoicenum = "SELECT CUSTOMERNAME FROM TAXINVOICE  where INVOICENO=" + txtInvoice.Text.ToString() + "";
                OleDbConnection oledinvoicenum = new OleDbConnection(connstring);
                //OleDbConnection c2 = new OleDbConnection(co);
                if (oledinvoicenum.State == ConnectionState.Open)
                {
                    oledinvoicenum.Close();
                }
                oledinvoicenum.Open();

                OleDbCommand oledbproductcmd = new OleDbCommand(invoicenum, oledinvoicenum);
                object obj = oledbproductcmd.ExecuteScalar();
                if (obj != null)
                {
                    if (!String.IsNullOrEmpty(obj.ToString()))
                    {
                        MessageBox.Show("InvoiceNo Already Exists");
                        txtInvoice.Text = "";
                    }
                }
            }
        }

        private void TAXINVOICE_FormClosing(object sender, FormClosingEventArgs e)
        {
            Application.Exit();

        }

        private void txtCustName_TextChanged(object sender, EventArgs e)
        {

        }

        private void txtAddress1_TextChanged(object sender, EventArgs e)
        {

        }

        private void txtGrossAmt1_TextChanged(object sender, EventArgs e)
        {

        }

        private void txtTotalGrossAmt_TextChanged(object sender, EventArgs e)
        {

        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (comboBox1.SelectedItem == "VAT SALES")
            {
                ddlTransaction.Text = "CREDIT INVOICE";
            }
            else
            {
                ddlTransaction.Text = "CREDIT INVOICE / CST SALES";
            }
        }

    }
}

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08-23 00:39