显示行号类

  /// <summary>

        /// GridView  显示行号   设置行号列的宽度

        /// </summary>

        /// <param name="gv">GridView 控件名称</param>

        /// <param name="width">行号列的宽度 如果为null或为0 默认为30</param>

        public  void DrawRowIndicator(DevExpress.XtraGrid.Views.Grid.GridView gv, int width) {

            gv.CustomDrawRowIndicator += new DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventHandler(gv_CustomDrawRowIndicator);

            if (width != null)

            {

                if (width != 0)

                {

                    gv.IndicatorWidth = width;

                }

                else {

                    gv.IndicatorWidth = 30;

                }

            }

            else {

                gv.IndicatorWidth = 30;

            }

        }

        //行号设置

        private void gv_CustomDrawRowIndicator(object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e) {

            if (e.Info.IsRowIndicator && e.RowHandle > -1) {

                e.Info.DisplayText = (e.RowHandle + 1).ToString();

            }

        }

调用：

 DrawRowIndicator(gridView1, 30);

备注：

显示行号可以直接给GridView添加CustomRowIndicator事件 ，即上面的“行号设置”方法