How
to use CheckBoxList control and do transaction on checkboxlist using asp.net c#
code
Step 1 : First create your website
in asp.net and create one .aspx page .
Step2: Open .aspx page and add
checkboxlist control.
<asp:CheckBoxList
ID="cbList" runat="server" >
</asp:CheckBoxList>
</asp:CheckBoxList>
Step 3 : And add buttons control to
do transaction on checkboxlist.
<asp:Button ID="BtnAdd"
runat="server" OnClick="BtnAdd_Click" Text="Add
Item" />
<asp:Button ID="BtnDelete" runat="server" Text="Delete Selcted" OnClick="BtnDelete_Click" />
<asp:Button ID="BtnSelectAll" runat="server" Text="Select All" OnClick="BtnSelectAll_Click" />
<asp:Button ID="BtnUnSelectAll" runat="server" Text="Un-Select All" OnClick="BtnUnSelectAll_Click" />
<asp:Button ID="BtnDelete" runat="server" Text="Delete Selcted" OnClick="BtnDelete_Click" />
<asp:Button ID="BtnSelectAll" runat="server" Text="Select All" OnClick="BtnSelectAll_Click" />
<asp:Button ID="BtnUnSelectAll" runat="server" Text="Un-Select All" OnClick="BtnUnSelectAll_Click" />
Step 4 :Add server side code to
handle button event.
private static int itemAdded =
0;
protected void
BtnAdd_Click(object sender, EventArgs e)
{
ListItem litem = new ListItem();
itemAdded++;
litem.Text = "Item" + itemAdded;
litem.Value = "Item" + itemAdded;
cbList.Items.Add(litem);
}
protected void BtnDelete_Click(object sender, EventArgs e)
{
for (int i =0;i< cbList.Items.Count; i++)
{
if (cbList.Items[i].Selected == true)
{
cbList.Items.RemoveAt(i);
}
}
}
protected void BtnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = true;
}
}
protected void BtnUnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = false;
}
}
{
ListItem litem = new ListItem();
itemAdded++;
litem.Text = "Item" + itemAdded;
litem.Value = "Item" + itemAdded;
cbList.Items.Add(litem);
}
protected void BtnDelete_Click(object sender, EventArgs e)
{
for (int i =0;i< cbList.Items.Count; i++)
{
if (cbList.Items[i].Selected == true)
{
cbList.Items.RemoveAt(i);
}
}
}
protected void BtnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = true;
}
}
protected void BtnUnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = false;
}
}
Step 5 : Just run your page and try
to check your code.
//----------------------- Page
Design Code -----------------
<%@ Page Language="C#"
AutoEventWireup="true" CodeFile="FileUploadControl.aspx.cs"
Inherits="FileUploadControl" %>
<!DOCTYPE html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CheckBoxListControl.aspx.cs" Inherits="CheckBoxListControl" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.auto-style1 {
width: 100%;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="auto-style1">
<tr>
<td>
<asp:CheckBoxList ID="cbList" runat="server">
</asp:CheckBoxList>
</td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<asp:Button ID="BtnAdd" runat="server" OnClick="BtnAdd_Click" Text="Add Item" />
<asp:Button ID="BtnDelete" runat="server" Text="Delete Selcted" OnClick="BtnDelete_Click" />
<asp:Button ID="BtnSelectAll" runat="server" Text="Select All" OnClick="BtnSelectAll_Click" />
<asp:Button ID="BtnUnSelectAll" runat="server" Text="Un-Select All" OnClick="BtnUnSelectAll_Click" />
</td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</div>
</form>
</body>
</html>
<!DOCTYPE html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CheckBoxListControl.aspx.cs" Inherits="CheckBoxListControl" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.auto-style1 {
width: 100%;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="auto-style1">
<tr>
<td>
<asp:CheckBoxList ID="cbList" runat="server">
</asp:CheckBoxList>
</td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td>
<asp:Button ID="BtnAdd" runat="server" OnClick="BtnAdd_Click" Text="Add Item" />
<asp:Button ID="BtnDelete" runat="server" Text="Delete Selcted" OnClick="BtnDelete_Click" />
<asp:Button ID="BtnSelectAll" runat="server" Text="Select All" OnClick="BtnSelectAll_Click" />
<asp:Button ID="BtnUnSelectAll" runat="server" Text="Un-Select All" OnClick="BtnUnSelectAll_Click" />
</td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</div>
</form>
</body>
</html>
//----------------------- Page
Server Side Code -----------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class CheckBoxListControl : System.Web.UI.Page
{
private static int itemAdded = 0;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void BtnAdd_Click(object sender, EventArgs e)
{
ListItem litem = new ListItem();
itemAdded++;
litem.Text = "Item" + itemAdded;
litem.Value = "Item" + itemAdded;
cbList.Items.Add(litem);
}
protected void BtnDelete_Click(object sender, EventArgs e)
{
for (int i =0;i< cbList.Items.Count; i++)
{
if (cbList.Items[i].Selected == true)
{
cbList.Items.RemoveAt(i);
}
}
}
protected void BtnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = true;
}
}
protected void BtnUnSelectAll_Click(object sender, EventArgs e)
{
foreach (ListItem lb in cbList.Items)
{
lb.Selected = false;
}
}
}
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