将动画添加到I'；我在代码c#wpf中创建了

我在代码中创建了多个椭圆，并添加了MouseEnter和Leave事件。我的问题是，当我用光标进入椭圆时，它会改变整个窗口的不透明度，而不仅仅是一个椭圆

在这里，我创建了椭圆：

        for (int i = 0; i < L2.Count; i++)
        {
            Ellipse myEllipse = new Ellipse();                  
            myEllipse.Opacity = .5;
            myEllipse.MouseEnter += MyEllipse_MouseEnter;
            myEllipse.MouseLeave += MyEllipse_MouseLeave;
            users_profiles.Children.Add(myEllipse);

        }

它会更改整个窗口的不透明度

显然，因为您在主窗口实例上调用了

BeginAnimation

从sender参数获取椭圆：

private void MyEllipse_MouseLeave(object sender, MouseEventArgs e)
{
    var ellipse = (Ellipse)sender;
    var open_an = new DoubleAnimation
    {
        From = 1,
        To = .5,
        Duration = TimeSpan.FromSeconds(.3)
    };
    ellipse.BeginAnimation(UIElement.OpacityProperty, open_an);
}

---

您忘记提供MyEllipse\u MouseEnter事件。

private void MyEllipse_MouseLeave(object sender, MouseEventArgs e)
{
    var ellipse = (Ellipse)sender;
    var open_an = new DoubleAnimation
    {
        From = 1,
        To = .5,
        Duration = TimeSpan.FromSeconds(.3)
    };
    ellipse.BeginAnimation(UIElement.OpacityProperty, open_an);
}