错误：（object）是一个''字段''但是像''type''一样使用（crystalreport和C＃）

问题描述

我想根据txtInvoiceNo中的发票编号在报告中显示发票详细信息，但我在行中的crystalReportViewer1中面临错误// crystalReportViewer1 r = new crystalReportViewer1（）; //

I want to show the invoice details in the report i have made, as per the invoice number in the txtInvoiceNo, but i am facing an error under "crystalReportViewer1 in the line //crystalReportViewer1 r = new crystalReportViewer1(); //

using System;
using System.IO;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.Odbc;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
using CrystalDecisions.ReportSource;
using System.Data.OleDb;
using System.Collections;
using System.Web;


namespace WStoreSystem
{
    public partial class Print : Form
    {
        public Print()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
        }

        private void find_Click(object sender, EventArgs e)
        {
            if (txtInvoiceNo.Text == "")
            {
                MessageBox.Show("Please insert the invoice number!");
                txtInvoiceNo.Focus();
            }
            else
            {


                OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|StoreSys.mdb");
                OleDbDataAdapter ad = new OleDbDataAdapter("select * from InvoiceDetails where InvoiceID=@InvoiceID", con);
                ad.SelectCommand.Parameters.Add("@InvoiceID", OleDbType.VarChar);
                ad.SelectCommand.Parameters["@InvoiceID"].Value = txtInvoiceNo.Text;

                DataSet ds = new DataSet();
                ad.Fill(ds, "InvoiceDetails");
                crystalReportViewer1 r = new crystalReportViewer1();// the error is here 
 
                r.SetDataSource(ds.Tables["InvoiceDetails"]);
                crystalReportViewer1.ReportSource = r;
               

            }
        
        }
    }

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