asp.net and ajax

Question

i've used update panel on my page and when i run the application sometimes not always it shows error.......

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.

on that page

i saw elon's block http://weblogs.asp.net/leftslipper/archive/2007/02/26/sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx

,i tried everything what he saud but problem is still there.....

any idea !

Master Billa · Answer

Hi Lets me which version AJAX tool kit you are using? can u download latest version from codeplex.com and use that. then it will solve if any bugs in toolkit Thank you

Anupama Singh · Answer

hi Master i saw link which u have provided problem not solved

Anupama Singh · Answer

IT'S ALREADY THERE BUT PROBLEM IS STILL.........

Master Billa · Answer

Hi See end of the blog saying it not solution to all kind of situation. http://alpascual.com/blog/how-to-fix-sys-webforms-pagerequestmanagerparsererrorexception-in-ajax/ But you need try this way to fix on this http://blogs.msdn.com/webtopics/archive/2009/07/21/getting-the-sys-webforms-pagerequestmanagerparsererrorexception-while-making-an-ajax-callback.aspx thank you

Sanjay Chauhan · Answer

Hi try this: On top of the Page add: enableEventValidation =false