using DevExpress.XtraGrid.Views.Grid; namespace UAS_DeviceMonitor.CustomerControl.GridViewWithSerialNum { public partial class GridViewWithSerialNum : GridView { public GridViewWithSerialNum() { InitializeComponent(); IndicatorWidth = 30; } private void GridViewWithSerialNum_CustomDrawRowIndicator(object sender, RowIndicatorCustomDrawEventArgs e) { if (e.Info.IsRowIndicator && e.RowHandle >= 0) { e.Info.DisplayText = (e.RowHandle + 1).ToString(); } } } }