public ToastWindow() { InitializeComponent(); this.ShowInTaskbar = false; this.DataContext = this.ToastMessage; this.Topmost = true; this.FadeInOutAnimation = new DoubleAnimation { From = 0, To = 1, Duration = new Duration(TimeSpan.FromSeconds(1)), AutoReverse = true, RepeatBehavior = RepeatBehavior.Forever, }; AUtil.MoveToRightBottom(this); }