The origianl controled that cause page_load ?

when page_load is called because a call back or a post back, how can i know what is the control that cause this Call back / post back.

For example does it TreeView or button cause it ?

Thank you
Asi
asiAsked:
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Liquid90605Commented:
Here is an article I found regarding this topic.
It doesn't appear to be easy.
http://geekswithblogs.net/mahesh/archive/2006/06/27/83264.aspx
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