Modal Popup Extender disappears

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Hi friends,

I searched for online solution, but i did not get solution for my following problem:

Popup extender when i try to pop up, it appears and disappears immediately after a second.
Kindly suggest..

My code:
===============

HTML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!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>
    <style type="text/css">
    .modalBackground
{
      background-color: Yellow;
      filter: alpha(opacity=60);
      opacity: 0.6;
}
 
.modalPopup
{
      background-color:#ffffdd;
      border-width:3px;
      border-style:solid;
      border-color:Gray;
      padding:5px;
      width: 350px;
      height:300px;
}
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" BackgroundCssClass="modalBackground" PopupControlID="Panel1" TargetControlID="BtnshowPopup">
        </asp:ModalPopupExtender>
<asp:Button ID="BtnshowPopup" runat="server" Text="Show Popup" />
<asp:Panel id="Panel1" runat="server" CssClass="modalPopup">
<asp:Label ID="lblMsg" runat="server" Text="Here is the Modal Popup Extender. Do You want to continue?" ></asp:Label>
        <br />
<asp:Button ID="btnOk" runat="server" Text="YES" />
        <asp:Button ID="BtnCancel" runat="server" Text="NO" />
        </asp:Panel>
    </div>
    </form>
</body>
</html>

Posted 6-Apr-15 4:06am

Dinakar Kulkarni

Updated 6-Apr-15 5:06am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v5

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Comments

Dinakar Kulkarni 6-Apr-15 11:33am

thanks for integrating the code to one piece.

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