/// <summary>
/// ContentProperty property changed handler.
/// </summary>
/// <param name="d">ContentControl that changed its Content.</param>
/// <param name="e">DependencyPropertyChangedEventArgs.</param>
private static void OnLeftPropertyChanged(IDependencyObject d, DependencyPropertyChangedEventArgs e)
{
Canvas source = d as Canvas;
Debug.Assert(source != null, "The source is not an instance of ContentControl!");
// Notify derived classes of the change
source.OnLeftChanged(e.OldValue, e.NewValue);
}
