DoubleAnimation da = new DoubleAnimation();
            da.From = 0;
            da.To = 360;
            da.Duration = new Duration(TimeSpan.FromSeconds(3));
            da.RepeatBehavior = RepeatBehavior.Forever;
            RotateTransform rt = new RotateTransform();
            rectangle1.RenderTransform = rt;
            rt.BeginAnimation(RotateTransform.AngleProperty, da);

 
DoubleAnimation da = new DoubleAnimation();
da.From = 30;
da.To = 100;
da.Duration =  new Duration(TimeSpan.FromSeconds(1));
Button1.BeginAnimation(Button.HeightProperty, da);