Hello,
I have two user controls in Tuturial.aspx page. Markup for Tutorial.aspx is as follows
<%@ Page Title="My Test Buddy : Tutorials" Language="C#" MasterPageFile="~/MyTestBuddy_Inner.master"
AutoEventWireup="true" CodeFile="Tutorials.aspx.cs" Inherits="Tutorials" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<%@ Register Src="~/UserControls/VideoMedia.ascx" TagName="Video" TagPrefix="MTB" %>
<%@ Register Src="~/UserControls/PlayMedia.ascx" TagName="PlayMedia" TagPrefix="MTB" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<table>
<tr>
<td>
<asp:Panel ID="pnlPlayMedia" runat="server" style="display:none">
<asp:UpdatePanel runat= ...
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