Scale animation for WPF windows

I tried this code:

Storyboard storyboard = new Storyboard(); ScaleTransform scale = new ScaleTransform(1.5, 1.5); RenderTransformOrigin = new Point(0.5, 0.5); RenderTransform = scale; // Недопустимое преобразование для Window DoubleAnimation growAnimation = new DoubleAnimation(); growAnimation.Duration = TimeSpan.FromMilliseconds(300); growAnimation.From = 1; growAnimation.To = 1.8; storyboard.Children.Add(growAnimation); Storyboard.SetTargetProperty(growAnimation, new PropertyPath("RenderTransform.ScaleX")); Storyboard.SetTarget(growAnimation, this);