System.Windows.Forms.ListBox.SelectedIndexCollection.ClearCore C# (CSharp) Method

			internal bool ClearCore ()
			{
				if (selection.Count == 0)
					return false;

				foreach (int index in selection)
					owner.InvalidateItem (index);

				selection.Clear ();
#if NET_2_0
				// UIA Framework event: Selected items list updated
				OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Refresh, -1));
#endif 
				return true;
			}