public IEnumerable <ReceiptReceiving> GetReceiptReceivingList(string receiptnum, string customerid, string warehousename) { try { ReceiptManagementAccessor accessor = new ReceiptManagementAccessor(); return(accessor.GetReceiptReceivingList(receiptnum, customerid, warehousename)); } catch (Exception ex) { return(new List <ReceiptReceiving>()); } }