[[http://dotnetslackers.com/Community/blogs/simoneb/archive/2006/09/02/Getting-the-ID-of-the-UpdatePanel-which-triggered-an-asynchronous-postback.aspx|Getting-the-ID-of-the-UpdatePanel-which-triggered-an-asynchronous-postback]]


[[http://geekswithblogs.net/rashid/archive/2007/08/11/Loading-UserControl-Dynamically-in-UpdatePanel.aspx]]