WPF使用情节提要放大矩形

【问题标题】：WPF enlarge a rectangle using storyboardWPF使用情节提要放大矩形
【发布时间】：2015-08-02 14:23:18
【问题描述】：

您好，我有一个名为 (rect1) 的 Window>grid>矩形

如何使用情节提要放大此内容

错误：附加信息：不存在可解析名称“rect1”的适用名称范围

private void Window_MouseEnter(object sender, System.Windows.Input.MouseEventArgs e)
    {

        Storyboard buttonEnlargeStoryboard = new Storyboard();
        DoubleAnimation da = new DoubleAnimation();
        da.SetValue(Storyboard.TargetNameProperty, rect1.Name);
        da.BeginTime = new TimeSpan(0);
        da.Duration = TimeSpan.FromSeconds(1);
        buttonEnlargeStoryboard.Children.Add(da);

        buttonEnlargeStoryboard.Begin();



    }

【问题讨论】：

标签： c# wpf storyboard

【解决方案1】：

您应该像这样为宽度和高度属性设置动画：

        DoubleAnimation widthAnimation = new DoubleAnimation
        {
            From = 0,
            To = rect1.ActualWidth*2,
            Duration = TimeSpan.FromSeconds(5)
        };

        DoubleAnimation heightAnimation = new DoubleAnimation
        {
            From = 0,
            To = rect1.ActualHeight*2,
            Duration = TimeSpan.FromSeconds(5)
        };

        Storyboard.SetTargetProperty(widthAnimation, new PropertyPath(Rectangle.WidthProperty));
        Storyboard.SetTarget(widthAnimation, rect1);

        Storyboard.SetTargetProperty(heightAnimation, new PropertyPath(Rectangle.HeightProperty));
        Storyboard.SetTarget(heightAnimation, rect1);

        Storyboard buttonEnlargeStoryboard = new Storyboard();
        buttonEnlargeStoryboard.SpeedRatio = 1;
        buttonEnlargeStoryboard.Children.Add(widthAnimation);
        buttonEnlargeStoryboard.Children.Add(heightAnimation);
        buttonEnlargeStoryboard.Begin();

【讨论】：