If false, space will not be allocated to display the labels of parent nodes if there is no set value for their labels. Also, if this property is set to false, the ChartTitle area will be hidden if there is no ChartTitle set under the TreeMapChartAppearance.ChartTitle property.
Target Platforms: Windows 10, Windows 8.1, Windows 8, 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