This property is only used when Icon is set to Character.
If there is more than one series of data (see GroupByColumn) then the char used for each series of data will be incremented starting with this property value.
When the selected character is a Unicode glyph, it is the developer's responsibility to ensure that the character code is represented in the CharacterFont selected, otherwise the results are undefined.
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