Derived classes can override this property to control whether data types that implement IEnumerable will be expandable by default. Note: If the IsExpandable property is set explicitly then this property is ignored.
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