Skip to main content

How to enable/disable dropdownlist through a checkbox selection

In this post,I will show you how to enable/disable dropdownlist control through checkbox selection in asp.net.

  • Create a new website 
  • Right click on the website,add a new webpage,and add following code into it



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!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>
    <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            $("#chkEnable").click(function () {
                if (this.checked)
                    $('#ddlList').attr('disabled', 'disabled');
                else
                    $('#ddlList').removeAttr('disabled');
            });
        });
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:CheckBox ID="chkEnable" runat="server" Text="Enable/Disable" /><br />
        <asp:DropDownList ID="ddlList" runat="server">
            <asp:ListItem Text="Select" Value="-1">
            </asp:ListItem>
            <asp:ListItem Text="Option1" Value="1" />
            <asp:ListItem Text="Option2" Value="2" />
            <asp:ListItem Text="Option3" Value="3" />
        </asp:DropDownList>
    </div>
    </form>
</body>
</html>

{Click here for live demo}

Comments

Popular posts from this blog