'Declaration Public Property ActiveField As Nullable(Of TaskField)
public Nullable<TaskField> ActiveField {get; set;}
The active field allows you to get or set which field is active in the grid portion of the GanttView. ActiveField will return null if there is no active cell in the current ActiveTask row, or if there is no current ActiveTask.
Note: ActiveTask will return TaskField.Custom for any custom columns. To get they key of the active column when custom columns are defined, use ActiveFieldKey.
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