This proeprty will return the actual resolved key of the column that is being used for the display of the selected item. If the DisplayMember has been set, then that property setting will be returned. Otherwise, this will return the ValueMemberResolved property.
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