RadGrid Event Handling Issue and IE8

[Edward Sudit]

We are having a serious problem with event handling of the RadGrid control on the server side when using IE8.  We are currently using the latest release of Telerik UI, 2011.3.1115.40.
The problem is that when the events "PageIndexChanged" and "PageSizeChanged" are fired, we receive the following error message from the browser:
    "Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Unable to cast object of type 'System.EventArgs' to type 'Telerik.Web.UI.GridPageSizeChangedEventArgs'."

This only happens with IE8.  When we use IE9 or FireFox for the same application, there is no error being thrown.  This is a big problem in our production environment since we have a large number of users that are using the IE8 browser.

Thank you in advance for any help you can provide.

Ed Sudit

[Tsvetina]

Hello Edward,

If you do not ajaxify your grid, you will see that a server-side error is thrown in all browsers with the same message as the javascript one that you see in IE8. To fix it, change the EventArgs type to the required one and the error message will stop showing.

Regards,
Tsvetina
the Telerik team

[Edward Sudit]

Changing the EventArgs type will not work since we need to get the selected page index from the client when they change the page they want to view.  The grid is currently attached to a RadAjaxManagerProxy in the <UpdatedConrols> section as a <Telerik:AjaxUpdatedControl> setting.

[Tsvetina]

Hello Edward,

Can you paste the code that errors out and let us know what is the eventual result expected from its execution? We may be able to suggest you a different approach that would work without causing exceptions.

Kind regards,
Tsvetina
the Telerik team