Script error "SF_EssentialGridObjec is undefinedt"

I have encountered the folowing problem:
I am using Syncfusion ASP.NET GripGroupingControl ver. 6.302.1.8 with ASP.NET AJAX UpdatePanel.
The development machine differs from the webserver's one. When I try to run ASP.NET page(on the server, on development machine everithing is working ok), that contains GripGroupingControl, script error appears: "SF_EssentialGridObject undefined". But despite error GridGroupingControls loads on the page, but it doesn't react to mouse click and consequently rows are not highlighted, actually no actions could be perfomed on the GridGroupingControl.

If i use GripGroupingControl without UpdatePanel everything works perfect.

Moreover using other Syncfusion ASP.NET controls with ASP.NET Ajax UpdatePanel leads to similar script errors like:
"SF_Calendar is undefined"
"SF_DropDownCalendarControl is undefined" and etc.

Is there any way to solve this problem?

Sincerely
Sergey K.

Hi Sergey,

Thanks for using Syncfusion products.

We do test our samples on the following servers,

- Windows 2003
- Windows 2008

Usually, this error signifies that the scripts haven't loaded properly in the Page. With IIS7, you need to set the Application pool of the IIS to default, and then you also need to provide proper details in the web.config to load the ScriptManager and its related scripts properly.

Please let us know about your web server details and also the IIS configuration, we would check it out on that and provide you with the details.

Thanks,
Fahad