private void XlyMoveActionBar_PreviewMouseMove(object sender, MouseEventArgs e) { this.time = 0; if (this.Content is FrameworkElement) { FrameworkElement element = this.Content as FrameworkElement; if (element.Visibility == System.Windows.Visibility.Collapsed) { element.BeginShowWithOpacityAndVisibility(this.ShowOrHideDuration, null); } } if (this.isStop) { this.timer.Start(); this.isStop = false; } }