ASP.Net Page PostBacks & Callbacks

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http://edndoc.esri.com/arcobjects/9.2/NET_Server_Doc/developer/ADF/pagepost_clientcall.htm

http://www.ajaxmatters.com/2006/05/creating-an-ajax-enabled-grid-using-icallbackeventhandler-part-1/

http://msdn.microsoft.com/en-us/library/ms178208.aspx

http://www.ajaxprojects.com/ajax/tutorialdetails.php?itemid=119#start

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