/// <summary> /// Handles changes to the Interval property. /// </summary> /// <param name="d">SprocketControl</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnIntervalChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { SprocketControl sprocket = (SprocketControl)d; double oldInterval = (double)e.OldValue; double newInterval = sprocket.Interval; sprocket.OnIntervalChanged(oldInterval, newInterval); }