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Ajax dropdown list not working

Posted By:      Posted Date: August 29, 2010    Points: 0   Category :ASP.Net
Dear All:I just implemented a simple Ajax drop down list. The problem I'm facing is that when I run the project I will not be able to select the values from drop down even though there are 4 values coming in. Here is my code:Default.aspx<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> <link href="StyleSheet.css" rel="stylesheet" type="text/css" /> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <div > Name:<asp:DropDownList ID="colorValue" runat="server" OnSelectedIndexChanged="colorValue_SelectedIndexChanged" ></asp:DropDownList> <ajaxToolkit:DropDownExtender ID="DropDownExtender1" runat="server" TargetControlID="colorValue" DropDownControlID="DropPanel" > </ajaxToolkit:DropD

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