公开方法与属性，以支援UI自动化用户端存取做为子物件集合之可卷动容器的控制项。
Exposes methods and properties to support UI Automation client access to controls that act as containers for a collection of individual, selectable child items.
取得的值表示控制项是否可垂直卷动。
Gets a value that indicates whether the control can scroll vertically.
应用推荐