WPF 动画结束时是否会触发任何事件？答案

【问题标题】：Is there any event that fires when WPF animation ends?WPF 动画结束时是否会触发任何事件？
【发布时间】：2012-02-29 22:29:18
【问题描述】：

WPF 动画结束时是否会触发任何事件？

void HideDefaultScreenImageTimer_Tick(object sender, EventArgs e)
{
    HideDefaultScreenImageTimer.Stop();

    var doubleAnimation = new DoubleAnimation(1, 0, new Duration(TimeSpan.FromSeconds(0.45)));
    DefaultScreenImage.BeginAnimation(UIElement.OpacityProperty, doubleAnimation);
    // I need some event when an animation ENDS and within that event I want to remove 
    // Image (DefaultScreenImage) from Canvas.
    MainCanvas.Children.Remove(DefaultScreenImage);
}

【问题讨论】：

标签： c# wpf xaml doubleanimation

【解决方案1】：

是的。

The Completed Event (MSDN).

所以你的代码变成了：

void HideDefaultScreenImageTimer_Tick(object sender, EventArgs e)
{
    HideDefaultScreenImageTimer.Stop();

    var doubleAnimation = new DoubleAnimation(1, 0, new Duration(TimeSpan.FromSeconds(0.45)));
    doubleAnimation.Completed += (sender, eArgs) => MainCanvas.Children.Remove(DefaultScreenImage);

    DefaultScreenImage.BeginAnimation(UIElement.OpacityProperty, doubleAnimation);
}

【讨论】：