All I do is setting the ItemsSource of my grid to my collection. Can you give me a hint on what is this ?
I don't know what is CheckInternalViewIsNotUsed. I need to understand as I do this for many grids with many collections that works 100% all the time. My collection is as normal as any other one there's nothing wrong in it. as I did try to set it to a simple ListBox and I did not have any trouble. I don't know what to look for with that.
I never had to empty a collection before setting ItemsSource. I just hope you'll not ask for a repro as this is way to huge to send you it's a complete production software and taking part of it will not make you reproduce it so if you may give me any hints about what you see below would be greatful !
Items collection must be empty before using ItemsSource.
à Telerik.Windows.Data.DataItemCollection.SetItemsSource(IEnumerable source)
à Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
à Telerik.Windows.Controls.GridView.GridViewDataControl.Bind(Object newValue)
à Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsSourceChanged(Object oldValue, Object newValue)
à Telerik.Windows.Controls.DataControl.OnItemsSourcePropertyChanged(DependencyObject origin, DependencyPropertyChangedEventArgs args)
>b__0(DependencyObject d, DependencyPropertyChangedEventArgs e)
à System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
à System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
à System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)