WPF Multiple CollectionView with different filters on same collection

Question

I\'m using a an ObservableCollection with two ICollectionView for different filters.

One is for filtering messages by some type, and one is

Answer 1

For anyone struggling with the problem that the filteredView does not observe the sourceCollection (messageList in this example):

I came around with this solution:

ICollectionView filteredView = new CollectionViewSource { Source=messageList }.View;
messageList.CollectionChanged += delegate { filteredView.Refresh(); };

So it will refresh our filteredView evertytime the CollectionChanged event of the source get's fired. Of course you can implement it like this too:

messageList.CollectionChanged += messageList_CollectionChanged;

private void messageList_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
    filteredView.Refresh(); 
}

Consider using PropertyChanged-Events when filtering on a specific Property is wanted.