I tried to use a RadCardView wich I wanted to replace a RadListBox, so I bound it to the same Collection in my ViewModel.
This collection is a ObservableCollection. To this collection are items added and removed from code behind from time to time.
But when this happens I get a nullreference exception.
In the Listbox everything is fine...
And the exception of the CardView is the same with or without a Dispatcher.
Does anyone have an idea what could solve this?