Silverlight开发历程—C#代码添加动画

XAML：

<Canvas x:Name="LayoutRoot" Background="White">        <Canvas x:Name="canvas_parent" />    </Canvas>

C#：

  public AnimationWithCSharp()        {            InitializeComponent();            //创建椭圆对象            Ellipse ellipse = new Ellipse();            ellipse.Width = 150;            ellipse.Height = 150;            ellipse.Fill = new SolidColorBrush(Color.FromArgb(255, 255, 0, 0));            //添加到Canvas中            canvas_parent.Children.Add(ellipse);            //创建Double动画            DoubleAnimation animation1 = new DoubleAnimation();            DoubleAnimation animation2 = new DoubleAnimation();            DoubleAnimation animation3 = new DoubleAnimation();            //设置动画的From   To属性            animation1.From = 20;            animation1.To = 400;            animation2.From = 20;            animation2.To = 250;            animation3.From = 30;            animation3.To = 150;            //设置动画时间             animation1.Duration = new Duration(new TimeSpan(0, 0, 0, 1));            animation2.Duration = new Duration(new TimeSpan(0, 0, 0, 1));            animation3.Duration = new Duration(new TimeSpan(0, 0, 0, 1));            //创建故事面板            Storyboard sb = new Storyboard();            //设置故事面板的时间            sb.Duration = new Duration(new TimeSpan(0, 0, 0, 1));            //设置动画是否重复播放            sb.RepeatBehavior = RepeatBehavior.Forever;           //添加三个动画到故事面板中            sb.Children.Add(animation1);            sb.Children.Add(animation2);            sb.Children.Add(animation3);            //设置动画的作用目标            Storyboard.SetTarget(animation1, ellipse);            Storyboard.SetTarget(animation2, ellipse);            Storyboard.SetTarget(animation3, ellipse);            //设置动画作用属性            Storyboard.SetTargetProperty(animation1,new PropertyPath("(Canvas.Left)"));            Storyboard.SetTargetProperty(animation2, new PropertyPath("(Canvas.Top)"));            Storyboard.SetTargetProperty(animation3, new PropertyPath("Height"));            //添加故事板到，Canvas中            canvas_parent.Resources.Add("storyboard", sb);            //开始播放动画            sb.Begin();        }

运行结果：会有一个圆在不停的变换形状态和位置。