Ajax error handling

[Piyush Bhatt]

 Rad controls when get some errors (like datasource is null or session expired etc) - where do they throw? How do I catch errors thrown by Rad Controls and do some processing?

Specially if I am using a AjaxManager in a page and session expires on the server - how do I refresh the whole page and redirect to Login or some other page?

Thanks,
Piyush

[Maria Ilieva]

Hi Piyush,

Please refer to this article, as well as this one , which describe custom exceptions handling and redirection to another page.
I hope these resources help.

Greetings,
Maria Ilieva
the Telerik team

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[Piyush Bhatt]

Sure! this helps to know more about the error handling in Rad Ajax.

As you know in .Net Page_Error and Application_Error get called whenever there is error. And I put the error message in a log file using these methods. But when Rad Ajax errors occur - these events don't seem to get called. And in that case, how do I log to the log file?

-Piyush

[Iana Tsolova]

Hi Piyush,

Please have a look at the resources mentioned by my colleagues so far. You can implement the OnAjaxRequestError event as described log the errors from there.

Greetings,
Iana
the Telerik team

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[Piyush Bhatt]

I do not find OnAjaxRequestError event on the server/client side for AjaxPanel control. I need to have this on the server side and I am using AjaxPanel - let me know how catch errors using this method.

-Piyush

[Iana Tsolova]

Hi Piyush,

You can use the AsyncPostBackError event of the ScriptManager for this purpose. Please, find more details here.

Kind regards,
Iana
the Telerik team

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