System.InvalidOperation with GridView

[GEB]

The browser is reporting a System.InvalidOperation in the GridView.  Specifically, it occurs at Telerik.Windows.Control.HeaderContentControl.OnIsEnabledChanged.  Note that if the RadGridView does not have any groupings, it does not occur.  But, if I drag a column header to cause groupings, this ultimately causes the exception to occur.

The exception occurs specifically when the GridView has groupings, and I attempt to put up my own semi-opaque canvas and a modal dialogbox-like window.  As soon as the opaque canvas is displayed the excpetion occurs.

[GEB]

An addition piece of information on this error.  The browser reports that the exception is because it "Cannot resolve TargetProperty Foreground on specified target."

[Nedyalko Nikolov]

Hi GEB,

Could you please provide a sample project that demonstrates this problem.
There is probably a problem with an animation of the GridViewGroupPanel, but I cannot reproduce your logic correctly without receiving addiitonal details or sample project. You can isolate the problem in a small and running project, zip the files and attach them to a new support thread.

Thanks for your time and cooperation.

Best wishes,
Nedyalko Nikolov
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[GEB]

I'll build a small project that demonstrates the issue.  How do I send it to you?  Because of at least one 3rd party assembly, I'll need to zip it as opposed to posting the source code.

[Vlad]

Hello GEB,

You can open support ticket.

All the best,
Vlad
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.