ObservableCollection Doesn’t support AddRange method, so I get notified for each item added, besides what about INotifyCollectionChanging?
Please refer to the updated and optimized C# 7 version. I didn’t want to remove the VB.NET version so I just posted it in a separate answer. Go to updated version Seems it’s not supported, I implemented by myself, FYI, hope it to be helpful: I updated the VB version and from now on it … Read more