解决方案的问题是，您要将滚动条放在ListBox周围，可能要将其放在ListBox中.

The problem with your solution is you're putting a scrollbar around a ListBox where you probably want to put it inside the ListBox.

如果要在列表框中强制使用滚动条，请使用ScrollBar.VerticalScrollBarVisibility附加属性.

If you want to force a scrollbar in your ListBox, use the ScrollBar.VerticalScrollBarVisibility attached property.

<ListBox 
    ItemsSource="{Binding}" 
    ScrollViewer.VerticalScrollBarVisibility="Visible">
</ListBox>

将此值设置为自动"将根据需要弹出滚动条.

Setting this value to Auto will popup the scrollbar on an as needed basis.