在code问题应用动画ScaleTransform [英] Applying animated ScaleTransform in code problem

问题描述

我试图找出为什么code以下似乎不工作。它不给一个错误 - 它根本不能扩展。实际上，它似乎如果我改变它作为我的第二个code样品的工作。
任何人有什么想法？

感谢

 公共静态无效StartMouseEnterAnimation（Button按钮）
    {
        故事板分镜=新的故事板（）;        ScaleTransform规模=新ScaleTransform（1.0，1.0，1，1）;
        button.RenderTransformOrigin =新的点（0.5,0.5）;
        button.RenderTransform =规模;        DoubleAnimation是growAnimation =新DoubleAnimation是（）;
        growAnimation.Duration = TimeSpan.FromMilliseconds（300）;
        growAnimation.From = 1;
        growAnimation.To = 1.8;
        storyboard.Children.Add（growAnimation）;        Storyboard.SetTargetProperty（growAnimation，新的PropertyPath（ScaleTransform.ScaleXProperty））;
        Storyboard.SetTarget（growAnimation，规模）;        storyboard.Begin（）;
    }
 

---下面的工作，但我必须完成创建的TransformGroup和参考这是一个更复杂的PropertyChain ...

 公共静态无效StartMouseEnterAnimation（Button按钮）
    {
        故事板分镜=新的故事板（）;
        ScaleTransform规模=新ScaleTransform（1.0，1.0，1，1）;
        button.RenderTransformOrigin =新的点（0.5,0.5）;
        的TransformGroup myTransGroup =新的TransformGroup（）;
        myTransGroup.Children.Add（规模）;
        button.RenderTransform = myTransGroup;        DoubleAnimation是growAnimation =新DoubleAnimation是（）;
        growAnimation.Duration = TimeSpan.FromMilliseconds（100）;
        //growAnimation.From = 1;
        growAnimation.To = 1.1;
        storyboard.Children.Add（growAnimation）;        的DependencyProperty [] = propertyChain新的DependencyProperty []
        {
            Button.RenderTransformProperty，
            TransformGroup.ChildrenProperty，
            ScaleTransform.ScaleXProperty
        };
        串thePath =（0）（1）[0]（2）。
        的PropertyPath myPropertyPath =新的PropertyPath（thePath，propertyChain）;
        Storyboard.SetTargetProperty（growAnimation，myPropertyPath）;
        Storyboard.SetTarget（growAnimation，按钮）;        storyboard.Begin（）;
   }
 

解决方案

我能够得到它通过调整你的第一个code样品，像这样的工作：

 公共静态无效StartMouseEnterAnimation（Button按钮）{
    故事板分镜=新的故事板（）;    ScaleTransform规模=新ScaleTransform（1.0，1.0）;
    button.RenderTransformOrigin =新的点（0.5,0.5）;
    button.RenderTransform =规模;    DoubleAnimation是growAnimation =新DoubleAnimation是（）;
    growAnimation.Duration = TimeSpan.FromMilliseconds（300）;
    growAnimation.From = 1;
    growAnimation.To = 1.8;
    storyboard.Children.Add（growAnimation）;    Storyboard.SetTargetProperty（growAnimation，新的PropertyPath（RenderTransform.ScaleX））;
    Storyboard.SetTarget（growAnimation，按钮）;    storyboard.Begin（）;
}
 

而不是新的PropertyPath（ScaleTransform.ScaleXProperty）），我用新的PropertyPath（RenderTransform.ScaleX）），和我的故事板的目标设置为按钮（不是scaleTransform本身）。

希望帮助！

I am trying to find out why the code below does not seem to work. It does not give an error - it simply doesn't scale. It actually does seem to work if I change it as to my second code sample. Anyone got any idea?

Thanks

public static void StartMouseEnterAnimation(Button button)
    {
        Storyboard storyboard = new Storyboard();

        ScaleTransform scale = new ScaleTransform(1.0, 1.0, 1, 1);
        button.RenderTransformOrigin = new Point(0.5, 0.5);
        button.RenderTransform = scale;

        DoubleAnimation growAnimation = new DoubleAnimation();
        growAnimation.Duration = TimeSpan.FromMilliseconds(300);
        growAnimation.From = 1;
        growAnimation.To = 1.8;
        storyboard.Children.Add(growAnimation);

        Storyboard.SetTargetProperty(growAnimation, new PropertyPath(ScaleTransform.ScaleXProperty));
        Storyboard.SetTarget(growAnimation, scale);

        storyboard.Begin();
    }

--- The following DOES work but I had to create a TransformGroup and reference this through a more complicated PropertyChain...

public static void StartMouseEnterAnimation(Button button)
    {    
        Storyboard storyboard = new Storyboard();            
        ScaleTransform scale = new ScaleTransform(1.0, 1.0, 1, 1);
        button.RenderTransformOrigin = new Point(0.5, 0.5);
        TransformGroup myTransGroup = new TransformGroup();
        myTransGroup.Children.Add(scale);
        button.RenderTransform = myTransGroup;

        DoubleAnimation growAnimation = new DoubleAnimation();
        growAnimation.Duration = TimeSpan.FromMilliseconds(100);
        //growAnimation.From = 1;
        growAnimation.To = 1.1;
        storyboard.Children.Add(growAnimation);

        DependencyProperty[] propertyChain = new DependencyProperty[]
        {
            Button.RenderTransformProperty, 
            TransformGroup.ChildrenProperty,
            ScaleTransform.ScaleXProperty
        };
        string thePath = "(0).(1)[0].(2)";
        PropertyPath myPropertyPath = new PropertyPath(thePath, propertyChain);
        Storyboard.SetTargetProperty(growAnimation, myPropertyPath);
        Storyboard.SetTarget(growAnimation, button);

        storyboard.Begin();
   }

解决方案

I was able to get it to work by tweaking your first code sample like so:

public static void StartMouseEnterAnimation(Button button) {
    Storyboard storyboard = new Storyboard();

    ScaleTransform scale = new ScaleTransform(1.0, 1.0);
    button.RenderTransformOrigin = new Point(0.5, 0.5);
    button.RenderTransform = scale;

    DoubleAnimation growAnimation = new DoubleAnimation();
    growAnimation.Duration = TimeSpan.FromMilliseconds(300);
    growAnimation.From = 1;
    growAnimation.To = 1.8;
    storyboard.Children.Add(growAnimation);

    Storyboard.SetTargetProperty(growAnimation, new PropertyPath("RenderTransform.ScaleX"));
    Storyboard.SetTarget(growAnimation, button);

    storyboard.Begin();
}

Instead of new PropertyPath(ScaleTransform.ScaleXProperty)), I used new PropertyPath("RenderTransform.ScaleX")), and I set the target of the storyboard to the button (not the scaleTransform itself).

Hope that helps!

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