Ajax UpdatePanel does not return MS-SQL errors??

I have a datagrid wrapped in an UpdatePanel. When I try adding or editing a row that violates a check constraint, I recieve the ridiculous Sys.WebForms.PageRequestManagerPerserErrorException: the message received from the server could not parsed... instead of the MS-SQLL error message.

Is there a way to rectify this behaviour?

TIA

Hi,

Please refer to this for the reason of the error:

http://siderite.blogspot.com/2007/02/aspnet-ajax-and-responsewrite-or.html

Hope this helps.

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I'm not sure about what is the inner problem of your application.
But I also face this kind of problem - 'Sys.WebForms.PageRequestManagerPerserErrorException:'. So far I
understand this happen when there is some unrecongnize html render or event occurs. I'm also not very clear.
But I solve the issue by set the attribute EnableEventValidation="false" in the ASPX page, where I place my UpdatePanel.Thanks
I'm not sure about what is the inner problem of your application.

But I also face this kind of problem - 'Sys.WebForms.PageRequestManagerPerserErrorException:'. So far I
understand this happen when there is some unrecongnize html render or event occurs. I'm also not very clear.

But I solve the issue by set the attribute EnableEventValidation="false" in the ASPX page, where I place my UpdatePanel.

Thanks

Thanks Raymond,

Yep. You can't write to the response stream when using AJAX.

Here is one more link

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