Hi
I'm getting "Sys, WebForms.PageRequestManagerServerErrorException: an unknow error occured while processing the request on the server. the status code returned from the server was: 500".
I'm using a GridView and Button in an Update panel, and on click on the button i'm returning selected rows from the gridview which was throwing the above error in javascript popup. Specifically this error is coming only if I assign "DataKeysNames" property of the gird view. Otherwise, it is working fine.
Please help me how to resolve this error.
Thanks inadvance
Regards
Anand
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