'Declaration Public Function IsMemberExpanded( _ ByVal positionItem As IPositionItem(Of TKey,TSortKey) _ ) As Nullable(Of Boolean)
public Nullable<bool> IsMemberExpanded( IPositionItem<TKey,TSortKey> positionItem )
true
if the member is expanded; false
if the member is collapsed; null
this IPositionItem<TKey,TSortKey>.Position does not belong to Positions collection.Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2