I am wrapping a grid view in an update panel, and I am not doing anything with Response.Write or Server.Transfer.
But for any click inside that grid we get  Sys.WebForms.PageRequestManagerParserErrorException for some customers.

If any body has idea please send it to me. 

Thanks,
Temesgen.

There are a few more cases when it can happen. Does any of the other 
conditiuons on following post apply?
http://weblogs.asp.net/leftslipper/archive/2007/02/26/sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx
-- 
Teemu Keiski
AspInsider, ASP.NET MVP
http://blogs.aspadvice.com/joteke
http://teemukeiski.net

"Temesgen Meheret"  wrote in message 
news:ed7On3n3HHA.1188@TK2MSFTNGP04.phx.gbl...
I am wrapping a grid view in an update panel, and I am not doing anything 
with Response.Write or Server.Transfer.
But for any click inside that grid we get 
Sys.WebForms.PageRequestManagerParserErrorException for some customers.

If any body has idea please send it to me.

Thanks,
Temesgen.