Hit Test Toolbar to find button

Toolbar is an ItemsControl and does not have click event handler to indicate which button is clicked. Here Hit Testing is used to figure that out:

Note that we need to use Preview to Tunneling Event Handler

       void tbr_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            ToolBar tbr = sender as ToolBar;
           
            Point pt=e.GetPosition(tbr);
            object btnClicked=null;
            UIElement element = tbr.InputHitTest(pt) as UIElement;
            while (element != null)
            {
                if (element == tbr) return;
                 btnClicked = tbr.ItemContainerGenerator.ItemFromContainer(element);
                 if (!btnClicked.Equals(DependencyProperty.UnsetValue)) break;
                element = (UIElement)VisualTreeHelper.GetParent(element);
            }
           
            if (btnClicked != null)
                Console.WriteLine((btnClicked as Button).Content);
            else
                Console.WriteLine("no item found");
        }