按照Demo,要实现该效果,需要设置:
/*
~Note: the following properties are set at design time and listed here only for demonstration purposes.
gridView1.OptionsView.GroupDrawMode = Views.Grid.GroupDrawMode.Office;
gridView1.OptionsView.ShowGroupedColumns = true;
gridView1.OptionsView.ShowGroupPanel = false;
gridView1.OptionsView.ShowVerticalLines = Utils.DefaultBoolean.False;
*/