CurrentSelectedItem property can be used to find out which column or band has been selected by the user. The return value can be an instace of UltraGridColumn or UltraGridBand or null in case no item is currently selected.
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