'Declaration Public Property OutliningStyle As OutliningStyle
public OutliningStyle OutliningStyle {get; set;}
Excel only supports outlining up to 8 levels (0-7). This property allows you to specify what to do when the grid hierarchy exceeds this limit, or to turn outlining off entirely.
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