故事板动画

Question

我做了一个小的WPF应用程序来滑动UserControls进出，我遇到的问题是UserControl动画滑动时，然后单击按钮滑动另一个UserControl，它们都滑出 - 我是不知道这是为什么？

public UserControl1() 
{ 
    InitializeComponent(); 
} 

public void SlideIn(UserControl uc) 
{ 
    ThicknessAnimation tAnimation = new ThicknessAnimation(); 
    tAnimation.Duration = new Duration(TimeSpan.FromSeconds(0.5)); 
    tAnimation.From = new Thickness(500, 0, -500, 0); 
    tAnimation.To = new Thickness(0); 
    tAnimation.DecelerationRatio = 0.9; 

    Storyboard.SetTargetName(tAnimation, uc.Name); 
    Storyboard.SetTargetProperty(tAnimation, new PropertyPath(MarginProperty)); 

    Storyboard storyboard = new Storyboard(); 
    storyboard.Children.Add(tAnimation); 
    storyboard.Begin(uc); 
    this.Content = uc; 
} 

public void SlideOut(UserControl uc) 
{ 
    ThicknessAnimation tAnimation = new ThicknessAnimation(); 
    tAnimation.Duration = new Duration(TimeSpan.FromSeconds(0.5)); 
    tAnimation.To = new Thickness(-500, 0, 500, 0); 
    tAnimation.DecelerationRatio = 0.9; 

    Storyboard.SetTargetName(tAnimation, uc.Name); 
    Storyboard.SetTargetProperty(tAnimation, new PropertyPath(MarginProperty)); 

    Storyboard storyboard = new Storyboard(); 
    storyboard.Children.Add(tAnimation); 
    storyboard.Begin(this); 
} 

private void button1_Click(object sender, RoutedEventArgs e) 
{ 
    SlideOut(userControl1); 
    UserControl2 uc2 = new UserControl2(); 
    SlideIn(uc2); 
} 

Answer 1

您是否将UserControl的Name属性设置在某处？或者更准确地说，你是否给第二个用户控件一个不同于第一个的名称？您的动画通过设置为

Storyboard.SetTargetName(tAnimation, uc.Name); 

因此名称应该不同。您也可以致电

Storyboard.SetTarget(tAnimation, uc); 

指定目标。