故事板動畫

Question

我做了一個小的WPF應用程序來滑動UserControls進出，我遇到的問題是UserControl動畫滑動時，然後單擊按鈕滑動另一個UserControl，它們都滑出 - 我是不知道這是爲什麼？

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

您是否將UserControl的Name屬性設置在某處？或者更準確地說，你是否給第二個用戶控件一個不同於第一個的名稱？您的動畫通過設置爲

Storyboard.SetTargetName(tAnimation, uc.Name); 

因此名稱應該不同。您也可以致電

Storyboard.SetTarget(tAnimation, uc); 

指定目標。