System.Object
C1.GanttView.BaseGroup
C1.GanttView.ConstraintTypeGroup
C1.GanttView.CustomFieldGroup
C1.GanttView.DurationGroup
C1.GanttView.MilestonesGroup
C1.GanttView.ResourceGroup
C1.GanttView.StatusGroup
C1.GanttView.TaskCompleteGroup
C1.GanttView.TaskModeGroup