Specifies whether the add-row belonging to this row collection has been modified by the user. This flag is used to determine whether to commit a template add-row when the user moves off the row. If the user doesn't modify a template add-row then it will not be committed when the user leaves the template add-row.
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
