CollectionChanged event of the IViewsCollection

I didn't catch the CollectionChanged event of the IViewsCollection when I close a view.

It should raise with the Remove action no ?

MyRegionManager.Regions["Main"].Views.CollectionChanged +=new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Views_CollectionChanged);

void Views_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)

{

// this event should be thrown with e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove

}

Thanks for help.