RadGrid version 5.0.0.0 doesn't work with Firefox

[Rob Venable]

HI,
I've recently taken over a project that contains RadControls version 5.0.0.0 and I'm having issues with some of the controls. I'm having issues with the RadGrid in Firefox. I can view the page that contains the grid but when I click on an item in the grid...nothing happens when I should be redirected to another page. This works fine in IE 7. I've tried many suggestions like setting the EnableAjax property to false and using response.redirectlocation in stead of response.redirect as well as using RadAjaxMAnager1.Redirect but nothing works.

However, our DEV server gets the following Javascript error when viewing it in IE:

Line: 1387
Char: 1
Error: Unexpected ajax response was received from the server. This may be caused by one of the following reasons:

- server transfer
- custom http handler
- incorrect loading of an "ajaxified" user control

Verify that you don't get a server-side exception or any other undesired behavior, by setting the EnableAjax property to false

Our DEV server uses IIS 7.5 and Windows Server 2008 and I can't duplicate it in my local environment which uses IIS 5.1 on WindowsXP. Are these controls just too old for IIS 7.5 and the 4.0 Framework? This application was originally programmed in 2007 using ASP.Net 2.0.

Thanks

[Iana Tsolova]

Hello Rob,

Indeed, you should be able to use the controls with the specified version in a Web Application built under .NET 4.0. However as the controls were developed long ago, you might experience issues with the new browser.
Though having the information provided, this is not an that comes from the browser but is rather related to an issue with the response. Therefore I suggest that you open a formal support ticket and send us a runnable version of your case so we can investigate it further and see if we get a solution for it.

Regards,
Iana
the Telerik team