///<summary>
        /// Method Invocation of wrapper classes
        ///<summary>
        protected static FR_L5PO_GPOPfH_1015 Invoke(DbConnection Connection, DbTransaction Transaction, string ConnectionString, P_L5PO_GPOPfH_1015 Parameter, CSV2Core.SessionSecurity.SessionSecurityTicket securityTicket = null)
        {
            bool cleanupConnection  = Connection == null;
            bool cleanupTransaction = Transaction == null;

            FR_L5PO_GPOPfH_1015 functionReturn = new FR_L5PO_GPOPfH_1015();

            try
            {
                if (cleanupConnection == true)
                {
                    Connection = CSV2Core_MySQL.Support.DBSQLSupport.CreateConnection(ConnectionString);
                    Connection.Open();
                }
                if (cleanupTransaction == true)
                {
                    Transaction = Connection.BeginTransaction();
                }

                functionReturn = Execute(Connection, Transaction, Parameter, securityTicket);

                #region Cleanup Connection/Transaction
                //Commit the transaction
                if (cleanupTransaction == true)
                {
                    Transaction.Commit();
                }
                //Close the connection
                if (cleanupConnection == true)
                {
                    Connection.Close();
                }
                #endregion
            }
            catch (Exception ex)
            {
                try
                {
                    if (cleanupTransaction == true && Transaction != null)
                    {
                        Transaction.Rollback();
                    }
                }
                catch { }

                try
                {
                    if (cleanupConnection == true && Connection != null)
                    {
                        Connection.Close();
                    }
                }
                catch { }

                throw new Exception("Exception occured in method cls_Get_ProcurementOrderPositions_for_HeaderID", ex);
            }
            return(functionReturn);
        }
        protected static FR_L5PO_GPOPfH_1015 Execute(DbConnection Connection, DbTransaction Transaction, P_L5PO_GPOPfH_1015 Parameter, CSV2Core.SessionSecurity.SessionSecurityTicket securityTicket = null)
        {
            #region UserCode
            var returnValue = new FR_L5PO_GPOPfH_1015();
            var result      = new L5PO_GPOPfH_1015();

            #region Get ProcurementOrder Header
            var resultHeader = cls_Get_ProcurementOrderHeader_for_HeaderID.Invoke(Connection, Transaction
                                                                                  , new P_L5PO_GPOHfH_1406()
            {
                ProcurementOrderHeaderID = Parameter.ProcurementOrderHeaderID
            }, securityTicket).Result.FirstOrDefault();
            result.Header = resultHeader;
            #endregion

            #region Get Procurement Order Positions
            var procurementOrderPositions = ORM_ORD_PRC_ProcurementOrder_Position.Query.Search(Connection, Transaction
                                                                                               , new ORM_ORD_PRC_ProcurementOrder_Position.Query()
            {
                ProcurementOrder_Header_RefID = Parameter.ProcurementOrderHeaderID,
                Tenant_RefID = securityTicket.TenantID,
                IsDeleted    = false
            });
            if (procurementOrderPositions == null || procurementOrderPositions.Count() <= 0)
            {
                returnValue.Status = FR_Status.Success;
                result.Positions   = new L5PO_GPOPfH_1015a[0];
                returnValue.Result = result;
                return(returnValue);
            }
            var productIds = procurementOrderPositions.Select(i => i.CMN_PRO_Product_RefID).Distinct().ToArray();
            #endregion

            #region get expected delivery
            P_L5PO_GEDfPOP_1132 expectedDeliveryParam = new P_L5PO_GEDfPOP_1132();
            expectedDeliveryParam.ProcurementOrderPositions = procurementOrderPositions.Select(i => i.ORD_PRC_ProcurementOrder_PositionID).ToArray();
            var expectedDeliveries = cls_Get_ExpectedDeliveries_for_ProcurementOrderPositions.Invoke(Connection, Transaction, expectedDeliveryParam, securityTicket).Result;

            if (expectedDeliveries != null && expectedDeliveries.Length > 0)
            {
                result.ExpectedDeliveryDate = expectedDeliveries.First().ExpectedDeliveryDate;
            }
            #endregion

            #region Get cash discount
            var discountTypeParam = new P_L2DT_GDTfGPMIL_1546();
            discountTypeParam.GlobalPropertyMatchingID_List = new string[]
            {
                EnumUtils.GetEnumDescription(EDiscountType.CashDiscount),
            };
            var discountTypes = cls_Get_DiscountTypes_for_GlobalPropertyMatchingID_List.Invoke(Connection, Transaction, discountTypeParam, securityTicket).Result;

            if (discountTypes != null && discountTypes.Length > 0)
            {
                var discountTypeID = discountTypes.First().ORD_PRC_DiscountTypeID;
                var positionIDs    = procurementOrderPositions.Select(i => i.ORD_PRC_ProcurementOrder_PositionID).ToArray();
                foreach (var item in positionIDs)
                {
                    var positionDiscount = ORM_ORD_PRC_ProcurementOrder_Position_Discount.Query.Search(Connection, Transaction,
                                                                                                       new ORM_ORD_PRC_ProcurementOrder_Position_Discount.Query
                    {
                        Tenant_RefID = securityTicket.TenantID,
                        IsDeleted    = false,
                        ORD_PRC_ProcurementOrder_Position_RefID = item,
                        ORD_PRC_DiscountType_RefID = discountTypeID
                    });

                    if (positionDiscount != null && positionDiscount.Count > 0)
                    {
                        result.CashDiscount = positionDiscount.First().DiscountValue;
                        break;
                    }
                }
            }

            #endregion

            #region Get discounts for procurement order positions
            var discounts = cls_Get_Discounts_for_ProcurementOrderPositions.Invoke(Connection, Transaction,
                                                                                   new P_L5PO_GDfPOP_1706()
            {
                ProcOrderPositionsList = procurementOrderPositions.Select(i => i.ORD_PRC_ProcurementOrder_PositionID).ToArray()
            }
                                                                                   , securityTicket).Result;
            #endregion

            #region Get Articles For ShipmentPositions
            var articles = cls_Get_Articles_for_ArticleList.Invoke(Connection, Transaction
                                                                   , new P_L3AR_GAfAL_0942()
            {
                ProductID_List = productIds
            }
                                                                   , securityTicket).Result;
            #endregion

            #region Get Available Product Quantities
            var shelfContents = cls_Get_CurrentShelfContents_and_ActiveReservations_for_ProductIDList.Invoke(Connection, Transaction
                                                                                                             , new P_L3WH_GCSCaARfP_1835()
            {
                ProductIDList = productIds
            }
                                                                                                             , securityTicket).Result.ToList();
            #endregion

            #region Get Standard Price
            var standardPrices = cls_Get_StandardPrices_for_ProductIDList.Invoke(Connection, Transaction
                                                                                 , new P_L3PR_GSPfPIL_1645()
            {
                ProductIDList = productIds
            }
                                                                                 , securityTicket).Result;
            #endregion

            #region Get MSR

            var msrForProducts = cls_Get_MSR_for_ProductIDList.Invoke(Connection, Transaction, new P_L3AS_GSMRfPL_1508 {
                ProductIDList = productIds
            }, securityTicket).Result;

            #endregion

            #region Set Result
            var resultsPositions = new List <L5PO_GPOPfH_1015a>();
            foreach (var pop in procurementOrderPositions)
            {
                var productMsr = msrForProducts.SingleOrDefault(x => x.ProductID == pop.CMN_PRO_Product_RefID);

                var standardPrice = standardPrices.Where(ap => ap.ProductID == pop.CMN_PRO_Product_RefID).ToList();
                var aekPrice      = standardPrice.Single().AverageProcurementPrice == 0
                    ? standardPrice.Single().AbdaPrice : standardPrice.Single().AverageProcurementPrice;
                var inStock  = shelfContents.Where(sc => sc.Product_RefID == pop.CMN_PRO_Product_RefID).ToList();
                var position = new L5PO_GPOPfH_1015a1()
                {
                    ProcurementOrderHeaderId   = pop.ProcurementOrder_Header_RefID,
                    ProcurementOrderPositionId = pop.ORD_PRC_ProcurementOrder_PositionID,
                    CreationTimestamp          = pop.Creation_Timestamp,
                    PositionQuantity           = pop.Position_Quantity,
                    PositionValuePerUnit       = pop.Position_ValuePerUnit,
                    PositionValueTotal         = pop.Position_ValueTotal,
                    QuantityInStock            = inStock.Count <= 0 ? 0 : inStock.Single().CurrentQuantity,
                    AEKPrice = aekPrice,
                    MSR      = (productMsr != null) ? productMsr.MSR : 0.0
                };

                var discount = discounts.Where(a => a.ord_prc_procurementOrder_Position_RefID == pop.ORD_PRC_ProcurementOrder_PositionID).ToArray();

                resultsPositions.Add(new L5PO_GPOPfH_1015a()
                {
                    Position = position,
                    Discount = ((discount == null) || (discount.Length == 0)) ? null : discount,
                    Article  = articles.Where(a => a.CMN_PRO_ProductID == pop.CMN_PRO_Product_RefID).Single()
                });
            }
            result.Positions = resultsPositions.ToArray();

            returnValue.Result = result;
            returnValue.Status = FR_Status.Success;
            #endregion

            return(returnValue);

            #endregion UserCode
        }