本文介绍了如何禁用checkboxlist中的多个复选框。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
我的任务是在线电影票预订。剧院有25张票。我点击5张票并在复选框列表中提交。
页面加载后，5张票将被禁用。在asp.net中的解决方案。
我尝试了什么：
我仍然完成，如果我点击5张票将存储在数据库中的5张票。
i给（checkboxlistID.item.enabled = false）。
第一张票只有disable.after页面加载所有票据被点击。但它没有禁用。
my task is online movie ticket booking. Theater have 25 tickets.I click 5 tickets and submit in the checkbox list.
After the page load that 5 tickets will be disable.give the solution in asp.net.
What I have tried:
still i complete,if i click the 5 tickets that 5 tickets will be store in the database.
i gave (checkboxlistID.item.enabled=false).
first ticket only disable.after page load all tickets are clicked.but it did not disable.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
namespace WebApplication1
{
public partial class MovieDetails : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
chkSeatsAvailability.Items.Clear();
PopulateBookedSeats();
}
}
private void PopulateBookedSeats()
{
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select * from tblBookedSeats";
cmd.Connection = conn;
conn.Open();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
while (sdr.Read())
{
ListItem item = new ListItem();
item.Text = sdr["Seat_No"].ToString();
item.Value = sdr["Seat_ID"].ToString();
item.Selected = Convert.ToBoolean(sdr["IsSelected"]);
if(item.Selected)
item.Attributes.CssStyle.Add("readonly","true");
chkSeatsAvailability.Items.Add(item);
}
}
conn.Close();
}
}
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
copyMovieName.Text = lblMovieName.Text;
lblSelectedMovie.Text = ddlMovieNames.SelectedItem.Text;
copyDate.Text = lblDate.Text;
lblSelectedDate.Text = txtDate.Text;
copyShowName.Text = lblShowName.Text;
lblSelecetedShow.Text = ddlShowName.SelectedItem.Text;
copySeats.Text = lblSeatsAvailability.Text;
String CS = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlConnection cn = new SqlConnection(CS))
{
cn.Open();
string interests = string.Empty;
foreach (ListItem li in chkSeatsAvailability.Items)
{
if (li.Selected)
{
interests += li + ",";
lblSelectedSeats.Text = interests;
}
}
SqlCommand cmd = cn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into tblBookingDetails(Date,Movie_Name,Show_Name,Seats_Availability) values(@Date,@Movie_Name,@Show_Name,@Seats_Availability)";
cmd.Parameters.AddWithValue("@Movie_Name", ddlMovieNames.SelectedItem.Text);
cmd.Parameters.AddWithValue("@Date",Convert.ToDateTime(txtDate.Text));
cmd.Parameters.AddWithValue("@Show_Name", ddlShowName.SelectedItem.Text);
cmd.Parameters.AddWithValue("@Seats_Availability", interests);
cmd.ExecuteNonQuery();
cn.Close();
String str = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlCommand command = new SqlCommand())
{
command.CommandText = "update tblBookedSeats set IsSelected = @IsSelected where Seat_ID=@Seat_ID";
command.Connection = conn;
conn.Open();
foreach (ListItem item in chkSeatsAvailability.Items)
{
command.Parameters.Clear();
command.Parameters.AddWithValue("@IsSelected", item.Selected);
command.Parameters.AddWithValue("@Seat_ID", item.Value);
command.ExecuteNonQuery();
[
}
conn.Close();
}
}
}
}
protected void chkSeatsAvailability_SelectedIndexChanged(object sender, EventArgs e)
{
listSeats.Items.Clear();
foreach (ListItem li in chkSeatsAvailability.Items)
{
if (li.Selected)
{
listSeats.Items.Add(li.Text);
}
if (chkSeatsAvailability.SelectedIndex==-1)
{
lblTotalList.ForeColor = System.Drawing.Color.Red;
}
else
{
lblTotalList.ForeColor = System.Drawing.Color.Black;
}
}
lblTotalList.Text = listSeats.Items.Count.ToString() + " Ticket(s) are choosing";
}
}
}推荐答案
if (item.Selected)
item.Enabled = false;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
namespace WebApplication1
{
public partial class MovieDetails : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
chkSeatsAvailability.Items.Clear();
PopulateBookedSeats();
}
}
private void PopulateBookedSeats()
{
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select * from tblBookedSeats";
cmd.Connection = conn;
conn.Open();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
while (sdr.Read())
{
ListItem item = new ListItem();
item.Text = sdr["Seat_No"].ToString();
item.Value = sdr["Seat_ID"].ToString();
item.Selected = Convert.ToBoolean(sdr["IsSelected"]);
if(item.Selected)
item.Attributes.CssStyle.Add("readonly","true");
chkSeatsAvailability.Items.Add(item);
}
}
conn.Close();
}
}
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
copyMovieName.Text = lblMovieName.Text;
lblSelectedMovie.Text = ddlMovieNames.SelectedItem.Text;
copyDate.Text = lblDate.Text;
lblSelectedDate.Text = txtDate.Text;
copyShowName.Text = lblShowName.Text;
lblSelecetedShow.Text = ddlShowName.SelectedItem.Text;
copySeats.Text = lblSeatsAvailability.Text;
String CS = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlConnection cn = new SqlConnection(CS))
{
cn.Open();
string interests = string.Empty;
foreach (ListItem li in chkSeatsAvailability.Items)
{
if (li.Selected)
{
interests += li + ",";
lblSelectedSeats.Text = interests;
}
}
SqlCommand cmd = cn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into tblBookingDetails(Date,Movie_Name,Show_Name,Seats_Availability) values(@Date,@Movie_Name,@Show_Name,@Seats_Availability)";
cmd.Parameters.AddWithValue("@Movie_Name", ddlMovieNames.SelectedItem.Text);
cmd.Parameters.AddWithValue("@Date",Convert.ToDateTime(txtDate.Text));
cmd.Parameters.AddWithValue("@Show_Name", ddlShowName.SelectedItem.Text);
cmd.Parameters.AddWithValue("@Seats_Availability", interests);
cmd.ExecuteNonQuery();
cn.Close();
String str = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlCommand command = new SqlCommand())
{
command.CommandText = "update tblBookedSeats set IsSelected = @IsSelected where Seat_ID=@Seat_ID";
command.Connection = conn;
conn.Open();
foreach (ListItem item in chkSeatsAvailability.Items)
{
command.Parameters.Clear();
command.Parameters.AddWithValue("@IsSelected", item.Selected);
command.Parameters.AddWithValue("@Seat_ID", item.Value);
command.ExecuteNonQuery();
[
}
conn.Close();
}
}
}
}
protected void chkSeatsAvailability_SelectedIndexChanged(object sender, EventArgs e)
{
listSeats.Items.Clear();
foreach (ListItem li in chkSeatsAvailability.Items)
{
if (li.Selected)
{
listSeats.Items.Add(li.Text);
}
if (chkSeatsAvailability.SelectedIndex==-1)
{
lblTotalList.ForeColor = System.Drawing.Color.Red;
}
else
{
lblTotalList.ForeColor = System.Drawing.Color.Black;
}
}
lblTotalList.Text = listSeats.Items.Count.ToString() + " Ticket(s) are choosing";
}
}
}
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