By default, this property returns true if the LeftImages has been allocated and has at least 1 item in the collection. A derived UltraTreeNode that overrides LeftImages should return a value appropriate to that class. Also, a derived UltraTreeNode class that does not override LeftImages should override this property and return the value of the ShouldSerializeLeftImages method.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, 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