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Alternative approach to CompositeCollection, when I need to use CollectionView.Filter for DataBindin

Posted By:      Posted Date: October 14, 2010    Points: 0   Category :WPF

I want to have in ListBox items binded to ObservableCollection, use filtering and add some special item, or add another collection.

Is this possible?

var callChannels = new CompositeCollection();
callChannels.Add(new CollectionContainer() { BlManager.OnlineUsers });

CallChannelsView = (CollectionView)CollectionViewSource.GetDefaultView(callChannels);

//CallChannelsView.Filter ist not supported on CompositeCollection, it would throw an Exception

EDIT: I dont want to create another collection add the special item to it. I want to reflect changes in original ObservableCollection to the ListBox.

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