[DevExpress] How to remove "Drag a column header here to group by that column"

GridControl 상단의 "Drag a column header here to group by that cloumn" 영역을 없애는 방법

To hide the group panel set the GridView.OptionsView.ShowGroupPanel property to False.

GridView 생성 후,

Run Designer -> Views -> Options -> OptionsView -> ShowGroupPanel -> False로 변경