触发ScrollViewer的滚动条可见性(WPF)

Question

是否可以创建基于ScrollViewer滚动条可见性触发的触发器？我有一个ScrollViewer与它VerticalScrollBarVisibility设置为Auto,我想改变一些的ScrollViewer的属性只有当在滚动条实际上是可见的.

像这样的东西:

<ScrollViewer VerticalScrollBarVisibility="Auto">
    <ScrollViewer.Triggers>
        <Trigger Property="IsScrollBarVisible" Value="True">
            <!-- Setters -->
        </Trigger>
    </ScrollViewer.Triggers>
</ScrollViewer>

Answer 1

触发ComputedVerticalScrollBarVisibility.