StackPanel位置

Question

在StackPanel被动画后，如何找到它的位置？

我有一个向左滑动堆叠面板的按钮。但是如果我想让它再次向左滑动，动画就不起作用了。

Answer 1

不要紧。我知道怎么做了.

     private Storyboard SlideEffect(UIElement controlToAnimate, double positionToMove)
    {
        //Get position of stackpanel
        GeneralTransform gt = controlToAnimate.TransformToVisual(gridWrapper);
        Point p = gt.Transform(new Point(0, 0));

        //add new storyboard and animation
        Storyboard sb = new Storyboard();
        DoubleAnimation da = new DoubleAnimation();
        da.To = p.X + positionToMove;
        Storyboard.SetTarget(da, controlToAnimate);
        Storyboard.SetTargetProperty(da, new PropertyPath("(controlToAnimate.RenderTransform).(TransformTranslate.X)"));
        sb.Children.Add(da);
        return sb;
    }

     private void btnNext_Click(object sender, RoutedEventArgs e)
    {
        SlideEffect(spCarousel, -200).Begin();
    }