What you can do in order to workaround the issue is to use different approach for changing the theme. It is to separate the grid in another UserControl and to recreate it after changing the theme, for example:
sender, RoutedEventArgs e)
The SilverlightControl1 is the one contains RadGridView. Here is a link
to related forum where a sample project is attached.
Following this approach you can save the applied filter descriptors before changing the theme and to restore them with applying the other theme.
Let us know if this approach is applicable in your case or you have any difficulties implementing it.
the Telerik team
Sharpen your .NET Ninja skills
! Attend Q1 webinar week and get a chance to win a license! Book your seat now >>