///<summary>
        /// Method Invocation of wrapper classes
        ///<summary>
        protected static FR_L5BC_SBPCN_0951 Invoke(DbConnection Connection, DbTransaction Transaction, string ConnectionString, P_L5BC_SBPCN_0951 Parameter, CSV2Core.SessionSecurity.SessionSecurityTicket securityTicket = null)
        {
            bool cleanupConnection  = Connection == null;
            bool cleanupTransaction = Transaction == null;

            FR_L5BC_SBPCN_0951 functionReturn = new FR_L5BC_SBPCN_0951();

            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_Save_BillPositions_CreditNotes", ex);
            }
            return(functionReturn);
        }
        protected static FR_L5BC_SBPCN_0951 Execute(DbConnection Connection, DbTransaction Transaction, P_L5BC_SBPCN_0951 Parameter, CSV2Core.SessionSecurity.SessionSecurityTicket securityTicket = null)
        {
            #region UserCode
            var returnValue = new FR_L5BC_SBPCN_0951();
            returnValue.Result = new L5BC_SBPCN_0951();
            var resultsBillReimbursements = new List <Guid>();

            #region Load BillPosition Credits, if exist
            var billPositionsCreditIds = cls_Get_Reimbursements_and_GrantedCreditNotes_for_BillPositions.Invoke(
                Connection,
                Transaction,
                new P_L5BC_GRaGCNfBP_1021()
            {
                BillPositionIDs = Parameter.BillPositionCredits.Select(bpc => bpc.BillPositionID).ToArray()
            },
                securityTicket).Result;
            #endregion

            #region Load or Create BillPosition GrantedCreditNote
            var billGrantedCreditNote = new ORM_ACC_CRN_GrantedCreditNote();
            if (billPositionsCreditIds != null && billPositionsCreditIds.Count() > 0)
            {
                #region Load GrantedCreditNote
                billGrantedCreditNote.Load(
                    Connection,
                    Transaction,
                    billPositionsCreditIds[0].ACC_CRN_GrantedCreditNoteID);
                if (billGrantedCreditNote.ACC_CRN_GrantedCreditNoteID == Guid.Empty)
                {
                    returnValue.Status = FR_Status.Error_Internal;
                    returnValue.Result = null;
                    return(returnValue);
                }

                #region Load related Reimbursements to extract TotalAmount without Reimbursements linked to Parameter.BillPositions
                var grantedCreditNoteReimbursements = ORM_BIL_BillPosition_Reimbursement.Query.Search(
                    Connection,
                    Transaction,
                    new ORM_BIL_BillPosition_Reimbursement.Query()
                {
                    ACC_CRN_GrantedCreditNote_RefID = billGrantedCreditNote.ACC_CRN_GrantedCreditNoteID,
                    Tenant_RefID = securityTicket.TenantID,
                    IsDeleted    = false
                });
                if (grantedCreditNoteReimbursements == null || grantedCreditNoteReimbursements.Count <= 0)
                {
                    returnValue.Status = FR_Status.Error_Internal;
                    returnValue.Result = null;
                    return(returnValue);
                }
                var selectedBillPositions = Parameter.BillPositionCredits.Select(bp => bp.BillPositionID).ToList();
                grantedCreditNoteReimbursements
                    = grantedCreditNoteReimbursements.Where(gcnr => !selectedBillPositions.Any(bp => bp == gcnr.BIL_BillPosition_RefID)).ToList();

                billGrantedCreditNote.CreditNote_Value = grantedCreditNoteReimbursements.Sum(gcnr => gcnr.ReimbursedValue);
                #endregion

                #endregion
            }
            else
            {
                #region Create GrantedCreditNote
                #region Get GrantedCreditNote Number
                var grantedCreditNoteNumber = cls_Get_and_Increase_IncreasingNumber_for_UsageArea.Invoke(
                    Connection,
                    Transaction,
                    new P_L2NR_GaIINfUA_1454()
                {
                    GlobalStaticMatchingID = EnumUtils.GetEnumDescription(ENumberRangeUsageAreaType.BillNumber)
                },
                    securityTicket).Result.Current_IncreasingNumber;
                #endregion

                billGrantedCreditNote.ACC_CRN_GrantedCreditNoteID = Guid.NewGuid();
                billGrantedCreditNote.CreditNote_Number           = grantedCreditNoteNumber;
                billGrantedCreditNote.CreditNote_Currency_RefID   = Parameter.BillPositionCredits[0].BillHeaderCurencyID;
                billGrantedCreditNote.DateOnCreditNote            = DateTime.Now;
                billGrantedCreditNote.Tenant_RefID = securityTicket.TenantID;
                #endregion
            }
            #endregion

            foreach (var billPosition in Parameter.BillPositionCredits)
            {
                var billReimbursement = new ORM_BIL_BillPosition_Reimbursement();

                #region Load or Create BillPosition Reimbursement
                if (billPositionsCreditIds != null && billPositionsCreditIds.Any(bpc => bpc.BIL_BillPosition_RefID == billPosition.BillPositionID))
                {
                    #region Load Reimbursement
                    billReimbursement.Load(
                        Connection,
                        Transaction,
                        billPositionsCreditIds.Where(bpc => bpc.BIL_BillPosition_RefID == billPosition.BillPositionID).First().BIL_BillPosition_ReimbursementID);
                    if (billReimbursement.BIL_BillPosition_ReimbursementID == Guid.Empty)
                    {
                        returnValue.Status = FR_Status.Error_Internal;
                        returnValue.Result = null;
                        return(returnValue);
                    }
                    #endregion
                }
                else
                {
                    #region Create Reimbursement
                    billReimbursement.BIL_BillPosition_RefID          = billPosition.BillPositionID;
                    billReimbursement.ACC_CRN_GrantedCreditNote_RefID = billGrantedCreditNote.ACC_CRN_GrantedCreditNoteID;
                    billReimbursement.Tenant_RefID = securityTicket.TenantID;
                    #endregion
                }
                #endregion

                #region Update or Save Reimbursement and GrantedCreditNote
                billReimbursement.ReimbursedQuantity = billPosition.ReimbursedQuantity;
                billReimbursement.ReimbursedValue    = billPosition.ReimbursedValue;
                var saveBillReimbursement = billReimbursement.Save(Connection, Transaction);
                if (saveBillReimbursement.Status != FR_Status.Success)
                {
                    returnValue.Status = FR_Status.Error_Internal;
                    returnValue.Result = null;
                    return(returnValue);
                }
                resultsBillReimbursements.Add(billReimbursement.ACC_CRN_GrantedCreditNote_RefID);

                billGrantedCreditNote.CreditNote_Value += billReimbursement.ReimbursedValue;
                #endregion
            }

            #region Save BillPosition GrantedCreditNote
            var saveGrantedCreditNote = billGrantedCreditNote.Save(Connection, Transaction);
            if (saveGrantedCreditNote.Status != FR_Status.Success)
            {
                returnValue.Status = FR_Status.Error_Internal;
                returnValue.Result = null;
                return(returnValue);
            }
            #endregion

            returnValue.Result.GrantedCreditNoteID          = billGrantedCreditNote.ACC_CRN_GrantedCreditNoteID;
            returnValue.Result.BillPositionReimbursementIDs = resultsBillReimbursements.ToArray();
            returnValue.Status = FR_Status.Success;

            return(returnValue);

            #endregion UserCode
        }