（1） this.gridView2.IndicatorWidth = 30;//设置显示行号的列宽

（2） 设置动作grid

voidgridView2_CustomDrawRowIndicator(objectsender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e) { 	            if(e.Info.IsRowIndicator && e.RowHandle >= 0) 	            { 	                e.Info.DisplayText = (e.RowHandle + 1).ToString(); 	            } }