BetterExplorer.CustomizeQAT.btnAdd_Click C# (CSharp) Метод

		private void btnAdd_Click(object sender, RoutedEventArgs e) {
			int sel = AllControls.SelectedIndex;
			RibbonItemListDisplay item = AllControls.SelectedValue as RibbonItemListDisplay;
			AllControls.Items.Remove(item);
			AddToList(item, true);

			CheckAgainstList();
			if (sel != 0) {
				AllControls.SelectedIndex = sel - 1;
			}
			else if (AllControls.Items.Count != 0) {
				AllControls.SelectedIndex = 0;
			}
			else {
				btnRemove.IsEnabled = true;
				btnAdd.IsEnabled = false;
			}
		}