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Thursday, October 3, 2013
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Change BackColor of CheckBox dynamically in ASP.NET

2:57 AMThursday, October 3, 2013
If you want to change back-color of the checkbox programmatically then you should use back-color  property at codebehind.
lets take a simple example for completing the task. Take a webform control and place one checkBox and one button control onto the design window. Now at time we can handle onClick event.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %>

<!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></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:CheckBox ID="CheckBox1" runat="server"
            Text="CheckBox for multiple selection" />
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click"
            Text="Change back color" />
    </div>
    </form>
</body>

</html>
Codebehind
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Default4 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        CheckBox1.BackColor = System.Drawing.Color.Green;
    }
}
Output
Change BackColor of CheckBox dynamically in ASP.NET

Change BackColor of CheckBox dynamically in ASP.NET

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