// copy constructor
 public clsPurchaseOrder(clsPurchaseOrder otherItem)
 {
     this.PurchaseOrderID = otherItem.PurchaseOrderID;
     this.Vin             = otherItem.Vin;
     this.Source          = otherItem.Source;
     this.AuthorizedBy    = otherItem.AuthorizedBy;
     this.Cost            = otherItem.Cost;
     this.InventoryID     = otherItem.InventoryID;
 }
 public static void insertPurchaseOrder(clsPurchaseOrder newPurchaseOrder)
 {
     deletePurchaseOrder(newPurchaseOrder.PurchaseOrderID, true); //update version
     GlobalListForTesting.totalPOList.Add(newPurchaseOrder);      //adds PO to test list
 }