Storyboard 中Completed事件的处理示例

<StackPanel Loaded="Start_Animation" Background="Red" x:Name="stackPanel">
            <StackPanel.Resources>
                <Storyboard x:Name="colorStoryboard" Completed="colorStoryboard_Completed">
                    <DoubleAnimationUsingKeyFrames Storyboard.TargetName="rectangle" Storyboard.TargetProperty="X" Duration="0:0:10" FillBehavior="Stop">
                        <LinearDoubleKeyFrame Value="0" KeyTime="0:0:0"/>
                        <LinearDoubleKeyFrame Value="350" KeyTime="0:0:2"/>
                        <LinearDoubleKeyFrame Value="50" KeyTime="0:0:7"/>
                        <LinearDoubleKeyFrame Value="200" KeyTime="0:0:8"/>
                    </DoubleAnimationUsingKeyFrames>
                </Storyboard>
            </StackPanel.Resources>
            <Rectangle Fill="Blue" Width="50" Height="50">
                <Rectangle.RenderTransform>
                    <TranslateTransform x:Name="rectangle" X="0" Y="0"/>
                </Rectangle.RenderTransform>
            </Rectangle>
            <TextBlock x:Name="textBlock" FontSize="30"/>
</StackPanel>

C#

 

    public partial class Page : UserControl
    ...{
        int i=1;
        System.Windows.Threading.DispatcherTimer timer;
        public Page()
        ...{
            InitializeComponent();
            timer = new System.Windows.Threading.DispatcherTimer();
            timer.Interval = new TimeSpan(0, 0, 0, 1);
            timer.Tick += new EventHandler(timer_Tick);
            timer.Start();
            textBlock.Text = i.ToString();
        }
        public void Start_Animation(object sender, EventArgs e)
        ...{
            colorStoryboard.Begin();
        }
        void timer_Tick(object sender, EventArgs e)
        ...{
            if (i <= 10)
            ...{
                textBlock.Text = i++.ToString();
            }
            else
            ...{
                timer.Stop();
            }
        }
        private void colorStoryboard_Completed(object sender, EventArgs e)
        ...{
            textBlock.Text = "Completed is appeared";
        }
    }