Ajax Modal popup not working in asp.net 3.5 sp1

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I am working asp.net web application
Here is my code :-

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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ModalPopup.aspx.cs" Inherits="ExpertSystem.ModalPopup" %>

<%@ Register  assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="ajaxToolkit"  %>

<!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 id="Head1" runat="server">
    <title>Untitled Page</title>
    <link href="StyleSheet.css" rel="stylesheet" type="text/css" />
    <script type="text/javascript">
    var styleToSelect;
    function onOk() {
    document.getElementById('Paragraph1').className = styleToSelect;
    }
</script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<br />
<asp:LinkButton ID="LinkButton1" runat="server">Please click to select an alternate text style.</asp:LinkButton><br />
<br />
<div>
   <p id="Paragraph1">
     <a href="http://joeon.net"><span style="color: #3366cc">Joe Stagner</span></a>,
      a member of the Microsoft product team, builds a CascadingDropDown sample application
      that demonstrates two fundamental benefits of AJAX-enabled web applications, namely
      web service integration and asynchronous page updates.
   </p>
   <asp:Panel EnableViewState="true" ID="Panel1" runat="server" CssClass="modalPopup" Style="display: none" Width="233px">
   <p>Choose the style you would like:</p>
   <input id="RadioA" name="Radio" onclick="styleToSelect = 'sampleStyleA';" type="radio" />
   <label class="sampleStyleA" for="RadioA">Choose THIS Style.</label><br />
   <input id="RadioB" name="Radio" onclick="styleToSelect = 'sampleStyleB';" type="radio" />
   <label class="sampleStyleB" for="RadioB">Choose THIS Style.</label><br />
   <input id="RadioC" name="Radio" onclick="styleToSelect = 'sampleStyleC';" type="radio" />
   <label class="sampleStyleC" for="RadioC">Choose THIS Style.</label><br />
   <input id="RadioD" name="Radio" onclick="styleToSelect = 'sampleStyleD';" type="radio" />
   <label class="sampleStyleD" for="RadioD">Choose THIS Style.</label><br />
   <br />
   <div align="center">
      <asp:Button ID="OkButton" runat="server" Text="OK" />
      <asp:Button ID="CancelButton" runat="server" Text="Cancel" />
   </div>
   </asp:Panel>
    <ajaxToolkit:ModalPopupExtender ID="Panel1_ModalPopupExtender1" runat="server"
        TargetControlID="LinkButton1"
             PopupControlID="Panel1"
             BackgroundCssClass="modalBackground"
             DropShadow="true"
             OkControlID="OkButton"
             OnOkScript="onOk()"
             CancelControlID="CancelButton"
             EnableViewState="true">

    </ajaxToolkit:ModalPopupExtender>
   <br />
   </div>
    </form>
</body>
</html>

Posted 30-Nov-11 21:25pm

Ravinder Singh Bhawer

Updated 30-Nov-11 21:27pm

v2

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Ravinder Singh Bhawer 1-Dec-11 3:28am

Pls reply me as soon as possible

2 solutions

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Abhi KA · Answer 1 · 2011-11-30T21:37:00

Solution 1

remove DropShadow property
is there modalpopupclass
in CSS

Posted 30-Nov-11 21:37pm

Abhi KA

Comments

Ravinder Singh Bhawer 1-Dec-11 3:52am

Thanx abhiram ... Yes there is an modalpopup class in css file ... and after removing dropshadow preperty modal popup is appearing for some seconds ..after a few second it was disappeare or invisible from page

Ravinder Singh Bhawer 1-Dec-11 4:01am

actually m working in web-application instead of website ... visual studio treat different with website and web application .... is this thing is reason for tht thing ??

Abhi KA · Answer 2 · 2011-11-30T22:35:00

Solution 2

are you try in webapplication?

Posted 30-Nov-11 22:35pm

Abhi KA

Comments

Ravinder Singh Bhawer 1-Dec-11 5:18am

yes m trying this in web application