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Uncheck CheckBoxList items when button is clicked

Posted By:satyapriyanayak       Posted Date: June 05, 2014    Points: 40    Category: Visual Studio    URL: http://www.dotnetspark.com  

In this Code Snippets we will know how to Uncheck CheckBoxList items when button is clicked.
 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Uncheck_check_list_Value._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:CheckBoxList ID="CheckBoxList1" runat="server">
    </asp:CheckBoxList>
    <asp:Button ID="btn_Uncheck" runat="server"  Text="Uncheck"
        onclick="btn_Uncheck_Click" />
    </div>
    
    </form>
</body>
</html>



using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace Uncheck_check_list_Value
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                CheckBoxList1.Items.Add("a");
                CheckBoxList1.Items.Add("b");
                CheckBoxList1.Items.Add("c");
            }
        }


        protected void btn_Uncheck_Click(object sender, EventArgs e)
        {
            for (int items = 0; items < CheckBoxList1.Items.Count; items++)
            {
                CheckBoxList1.ClearSelection();
            }
        }
    }
}

     

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