/// <summary> /// GridLinesProperty property changed handler. /// </summary> /// <param name="oldValue">Old value.</param> /// <param name="newValue">New value.</param> private void OnGridLinesPropertyChanged(GridLines oldValue, GridLines newValue) { RoutedPropertyChangedEventHandler<UIElement> listeners = _gridLinesElementPropertyChanged; if (listeners != null) { listeners(this, new RoutedPropertyChangedEventArgs<UIElement>(oldValue, newValue)); } }