I was using telerik controls with version 2020.2.617.45 and everything works fine, but when I updated Telerik.Windows.Data, Telerik.Windows.Controls and Telerik.Windows.controls.Data dll`s to version 2022.1.222.45 I got error in my custom behaviour at this row:
private void AssociatedObject_GotFocus(object sender, RoutedEventArgs e)
RadGridView gridView = sender as RadGridView;
if (gridView != null && gridView.CurrentCell != null && !gridView.CurrentCell.IsInEditMode && !gridView.CurrentCell.Column.IsReadOnly)
when I call gridView.CurrentCell.BeginEdit(); and I got error :System.MissingFieldException: 'Field not found: 'Telerik.Windows.Controls.ThemeManager.DefaultThemeName'.'
The problem occured after update.