DevExpress Gridcontrol显示序号列，用 gridView1_CustomDrawRowIndicator 的事件来实现。具体代码如下：

#region gridView1_CustomDrawRowIndicator

        /// <summary>

        /// 显示序号。

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void gridView1_CustomDrawRowIndicator(object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)

        {

            if (e.Info.IsRowIndicator && e.RowHandle >= 0)

            {

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

            }

        }

        #endregion

序号列的宽度设置gridView 的IndicatorWidth属性即可。