I have added TabPanels to my ASP.NET application as shown here -
http://www.asp.net/ajax/videos/how-do-i-use-the-aspnet-ajax-tabs-control
Now I need to populate the contentTemplate in the TabPanel asynchronously.
Placing a ContentPlaceHolder as follows does not do the trick -
<ContentTemplate >
<asp:ContentPlaceHolder ID="ContentPlaceHolderAlerts" runat="server">
</asp:ContentPlaceHolder>
</ContentTemplate>