Why is CollectionView.CollectionChanged protected?

Question

I want to monitor changes to a CollectionView but the CollectionChanged event is protected. How should I do this? Surely there must be a way to subscribe to this event - the list controls must do this somehow.

I can cast SourceCollection to INotifyCollectionChanged and add an event there, but that seems unneccesarily messy.

Answer 1

Why aren't you using an ObservableCollection instead?