Gets whether the group's header displays scroll buttons used to scroll through the tab headers corresponding to the group's child items. This property is in effect if the current group represents child items as tabs. This is a dependency property.
public bool TabHeaderHasScroll { get; }
Public ReadOnly Property TabHeaderHasScroll As Boolean
To enable the tabbed interface for a LayoutGroup object, set the GroupBorderStyle property to GroupBorderStyle.Tabbed.