如何为Storyboard Animation（Windows Universal App）设置ScrollViewer VerticalOffset属性？

Question

我尝试制作故事板动画，但我无法更改ScrollViewer的VerticalOffset属性。此代码适用于Opacity等。属性但不包含VerticalOffset和Horizo​​ntalOffset。

private void MakeVerticalAnimation()
{
    Storyboard AnimationStoryboard = new Storyboard();
    DoubleAnimation VerticalOffsetAnimation = new DoubleAnimation();
    Storyboard.SetTarget(VerticalOffsetAnimation, MyScrollViewer);
    Storyboard.SetTargetProperty(VerticalOffsetAnimation, "VerticalOffset");
    VerticalOffsetAnimation.EnableDependentAnimation = true;
    VerticalOffsetAnimation.From = 100;
    VerticalOffsetAnimation.To = 0;
    VerticalOffsetAnimation.Duration = TimeSpan.FromSeconds(3);
    AnimationStoryboard.Children.Add(VerticalOffsetAnimation);
    AnimationStoryboard.Begin();
}

Answer 1

您的动画无效，因为VerticalOffset 只读。您可以改用ChangeView方法。

MyScrollViewer.ChangeView(null, 0, null, false);

看看我的另一个答案here。