public void AddQuarterly_OrdersRow(Quarterly_OrdersRow row) {
     this.Rows.Add(row);
 }
 public void RemoveQuarterly_OrdersRow(Quarterly_OrdersRow row) {
     this.Rows.Remove(row);
 }
 public Quarterly_OrdersRowChangeEvent(Quarterly_OrdersRow row, System.Data.DataRowAction action) {
     this.eventRow = row;
     this.eventAction = action;
 }