c# - 双动画倾斜不起作用

Question

我试图让这个动画工作，但由于某种原因，当调度计时器调用它时什么都没有发生，有什么想法吗？

    public static void Grass2(Canvas canvas, int boundry)
    {
        foreach (var element in canvas.Children.OfType<Image>())
        {
            var elementName = Regex.Split(element.Name, "_");
            if (elementName[0] == "grass")
            {
                var skewGrass = new DoubleAnimation
                    {
                        From = 0,
                        To = boundry,
                        Duration = new Duration(TimeSpan.FromMilliseconds(100)),
                        RepeatBehavior = RepeatBehavior.Forever,
                        EasingFunction = new BackEase(),
                        AutoReverse = true
                    };
                element.BeginAnimation(SkewTransform.AngleXProperty, skewGrass);
            }
        }
    }

Answer 1

You're trying to animate the SkewTransform.AngleXProperty on an object of type Image. That won't work since Image does not have this property. However, the Image's RenderTransform might be set to a SkewTransform, and that SkewTransform can be animated:

...
// each element's RenderTransform must be a SkewTransform
var transform = (SkewTransform)element.RenderTransform;
transform.BeginAnimation(SkewTransform.AngleXProperty, skewGrass);