private static void FadeVerticalCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            FaderContentControl control = d as FaderContentControl;

            control.InitStoryBoards((bool)e.NewValue);
        }
        private static void FaderVisibilityCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            FaderContentControl control = d as FaderContentControl;

            control.ChangeVisibility((bool)e.NewValue);
        }