protected virtual IEnumerable resultRecords()
        {
            InventoryTranByAcctEnqFilter filter = Filter.Current;


            int startRow  = 0;
            int totalRows = 0;

            PXResultset <InventoryTranByAcctEnqResult> usortedList = InternalResultRecords.Select();

            if (usortedList.Count == 0)
            {
                return(usortedList);
            }
            decimal       beginBalance = ((InventoryTranByAcctEnqResult)usortedList[0]).BegBalance ?? 0m;
            List <object> list         = InternalResultRecords.View.Select(PXView.Currents, PXView.Parameters, new object[PXView.SortColumns.Length], PXView.SortColumns, PXView.Descendings, PXView.Filters, ref startRow, 0, ref totalRows);

            foreach (PXResult <InventoryTranByAcctEnqResult> item in list)
            {
                InventoryTranByAcctEnqResult it = (InventoryTranByAcctEnqResult)item;
                it.BegBalance = beginBalance;
                decimal?debit  = it.Debit;
                decimal?credit = it.Credit;
                beginBalance += (debit ?? 0m) - (credit ?? 0m);
                it.EndBalance = beginBalance;
            }
            return(list);
        }
        protected virtual IEnumerable internalResultRecords()
        {
            const bool useItemCostHistoryToOptimizeBalanceCalculation = true;             // false to debug and ensure that INItemCostHistory corresponds to INCostTran

            InventoryTranByAcctEnqFilter filter = Filter.Current;

            bool summaryByDay = filter.SummaryByDay ?? false;

            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.tranType>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.docRefNbr>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.subItemCD>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.siteID>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.locationID>(ResultRecords.Cache, null, !summaryByDay);

            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.accountID>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.subID>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.inventoryID>(ResultRecords.Cache, null, !summaryByDay);

            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.costAdj>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.finPerNbr>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.tranPerNbr>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.qty>(ResultRecords.Cache, null, !summaryByDay);
            PXUIFieldAttribute.SetVisible <InventoryTranByAcctEnqResult.unitCost>(ResultRecords.Cache, null, !summaryByDay);

            PXUIFieldAttribute.SetVisible(Tran.Cache, null, !summaryByDay);

            var resultList = new List <PXResult <InventoryTranByAcctEnqResult, INTran> >();

            decimal cumulativeBalance = 0m;

            if (filter.AccountID == null)
            {
                return(resultList);                 //empty
            }

            if (filter.FinPeriodID == null)
            {
                return(resultList);                 //empty
            }

            if (useItemCostHistoryToOptimizeBalanceCalculation)
            {
                PXSelectBase <INItemCostHist> cmd_CostHist = new PXSelectJoinGroupBy <INItemCostHist,

                                                                                      InnerJoin <Sub,
                                                                                                 On <Sub.subID, Equal <INItemCostHist.subID> > >,

                                                                                      Where <INItemCostHist.finPeriodID, Less <Current <InventoryTranByAcctEnqFilter.finPeriodID> > >,

                                                                                      Aggregate <
                                                                                          Sum <INItemCostHist.tranYtdCost,
                                                                                               Sum <INItemCostHist.tranBegCost,
                                                                                                    Sum <INItemCostHist.finYtdCost,
                                                                                                         Sum <INItemCostHist.finBegCost> > > > > >(this);

                //if (filter.AccountID != null) // checked above
                {
                    cmd_CostHist.WhereAnd <Where <INItemCostHist.accountID, Equal <Current <InventoryTranByAcctEnqFilter.accountID> > > >();
                }

                if (!SubCDUtils.IsSubCDEmpty(filter.SubCD))
                {
                    cmd_CostHist.WhereAnd <Where <Sub.subCD, Like <Current <InventoryTranByAcctEnqFilter.subCDWildcard> > > >();
                }

                PXResultset <INItemCostHist> costHistResult = (PXResultset <INItemCostHist>)cmd_CostHist.Select();
                if (costHistResult.Count == 1)                 // 0 is possible too
                {
                    if (filter.ByFinancialPeriod == true)
                    {
                        cumulativeBalance += (((INItemCostHist)costHistResult[0]).FinYtdCost ?? 0m) - (((INItemCostHist)costHistResult[0]).FinBegCost ?? 0m);
                    }
                    else
                    {
                        cumulativeBalance += (((INItemCostHist)costHistResult[0]).TranYtdCost ?? 0m) - (((INItemCostHist)costHistResult[0]).TranBegCost ?? 0m);
                    }
                }
            }

            PXSelectBase <INTranCost> cmd = new PXSelectReadonly2 <INTranCost,
                                                                   InnerJoin <INTran,
                                                                              On <INTran.tranType, Equal <INTranCost.tranType>,
                                                                                  And <INTran.refNbr, Equal <INTranCost.refNbr>,
                                                                                       And <INTran.lineNbr, Equal <INTranCost.lineNbr> > > >,
                                                                              InnerJoin <InventoryItem, On <InventoryItem.inventoryID, Equal <INTranCost.inventoryID>,
                                                                                                            And <Match <InventoryItem, Current <AccessInfo.userName> > > >,
                                                                                         InnerJoin <Sub, On <Sub.subID, Equal <INTranCost.invtSubID> >,
                                                                                                    InnerJoin <INSubItem, On <INSubItem.subItemID, Equal <INTranCost.costSubItemID> >,
                                                                                                               LeftJoin <INSite, On <INSite.siteID, Equal <INTranCost.costSiteID> >,
                                                                                                                         LeftJoin <INLocation, On <INLocation.locationID, Equal <INTranCost.costSiteID> >,
                                                                                                                                   LeftJoin <INCostStatus, On <INTranCost.costID, Equal <INCostStatus.costID> > > > > > > > >,
                                                                   Where <INSite.siteID, IsNull,
                                                                          Or <Match <INSite, Current <AccessInfo.userName> > > >,
                                                                   OrderBy <Asc <INTranCost.tranDate,
                                                                                 Asc <INTranCost.createdDateTime> > > >(this);

            //if (filter.FinPeriodID != null) // checked above
            if (filter.ByFinancialPeriod == true)
            {
                cmd.WhereAnd <Where <INTranCost.finPeriodID, Equal <Current <InventoryTranByAcctEnqFilter.finPeriodID> > > >();
            }
            else
            {
                cmd.WhereAnd <Where <INTranCost.tranPeriodID, Equal <Current <InventoryTranByAcctEnqFilter.finPeriodID> > > >();
            }

            //if (filter.AccountID != null) // checked above
            {
                cmd.WhereAnd <Where <INTranCost.invtAcctID, Equal <Current <InventoryTranByAcctEnqFilter.accountID> > > >();
            }

            if (!SubCDUtils.IsSubCDEmpty(filter.SubCD))
            {
                cmd.WhereAnd <Where <Sub.subCD, Like <Current <InventoryTranByAcctEnqFilter.subCDWildcard> > > >();
            }

            if (filter.EndDate != null)
            {
                cmd.WhereAnd <Where <INTranCost.tranDate, LessEqual <Current <InventoryTranByAcctEnqFilter.endDate> > > >();
            }
            if (filter.InventoryID != null)
            {
                cmd.WhereAnd <Where <INTranCost.inventoryID, Equal <Current <InventoryTranByAcctEnqFilter.inventoryID> > > >();
            }

            if (filter.SiteID != null)
            {
                cmd.WhereAnd <Where <INTranCost.costSiteID, Equal <Current <InventoryTranByAcctEnqFilter.siteID> > > >();
            }

            int gridLineNbr = 0;

            foreach (PXResult <INTranCost, INTran, InventoryItem, Sub, INSubItem, INSite, INLocation, INCostStatus> it in cmd.Select())
            {
                INTranCost   tc_rec = (INTranCost)it;
                INTran       t_rec  = (INTran)it;
                INSite       s_rec  = (INSite)it;
                INLocation   l_rec  = (INLocation)it;
                INSubItem    si_rec = (INSubItem)it;
                INCostStatus cs_rec = (INCostStatus)it;

                decimal rowCost = (tc_rec.InvtMult * tc_rec.TranCost) ?? 0m;

                if (tc_rec.TranDate < filter.StartDate)
                {
                    cumulativeBalance += rowCost;
                }
                else
                {
                    if (summaryByDay)
                    {
                        if ((resultList.Count > 0) && (((InventoryTranByAcctEnqResult)resultList[resultList.Count - 1]).TranDate == tc_rec.TranDate))
                        {
                            InventoryTranByAcctEnqResult lastItem = resultList[resultList.Count - 1];
                            if (rowCost >= 0)
                            {
                                lastItem.Debit += rowCost;
                            }
                            else
                            {
                                lastItem.Credit -= rowCost;
                            }
                            lastItem.EndBalance += rowCost;
                            resultList[resultList.Count - 1] = new PXResult <InventoryTranByAcctEnqResult, INTran>(lastItem, null);
                        }
                        else
                        {
                            InventoryTranByAcctEnqResult item = new InventoryTranByAcctEnqResult();
                            item.BegBalance = cumulativeBalance;
                            item.TranDate   = tc_rec.TranDate;
                            if (rowCost >= 0)
                            {
                                item.Debit  = rowCost;
                                item.Credit = 0m;
                            }
                            else
                            {
                                item.Debit  = 0m;
                                item.Credit = -rowCost;
                            }
                            item.EndBalance      = item.BegBalance + rowCost;
                            item.GridLineNbr     = ++gridLineNbr;
                            item.CreatedDateTime = tc_rec.CreatedDateTime;
                            resultList.Add(new PXResult <InventoryTranByAcctEnqResult, INTran>(item, null));
                        }
                        cumulativeBalance += rowCost;
                    }
                    else
                    {
                        InventoryTranByAcctEnqResult item = new InventoryTranByAcctEnqResult();
                        item.BegBalance = cumulativeBalance;
                        item.TranDate   = tc_rec.TranDate;
                        if (rowCost >= 0)
                        {
                            item.Debit  = rowCost;
                            item.Credit = 0m;
                        }
                        else
                        {
                            item.Debit  = 0m;
                            item.Credit = -rowCost;
                        }
                        item.EndBalance = item.BegBalance + rowCost;

                        item.AccountID   = tc_rec.InvtAcctID;
                        item.SubID       = tc_rec.InvtSubID;
                        item.TranType    = tc_rec.TranType;
                        item.DocType     = t_rec.DocType;
                        item.DocRefNbr   = tc_rec.RefNbr;
                        item.ReceiptNbr  = cs_rec.ReceiptNbr;
                        item.InventoryID = tc_rec.InventoryID;
                        item.SubItemCD   = si_rec.SubItemCD;
                        if (s_rec.SiteID != null)
                        {
                            item.SiteID     = s_rec.SiteID;
                            item.LocationID = null;
                        }
                        else
                        if (l_rec.LocationID != null)                                 //though it's more or less guaranteed
                        {
                            item.SiteID     = l_rec.SiteID;
                            item.LocationID = l_rec.LocationID;
                        }
                        item.TranDate        = tc_rec.TranDate;
                        item.FinPerNbr       = tc_rec.FinPeriodID;
                        item.TranPerNbr      = tc_rec.TranPeriodID;
                        item.Qty             = tc_rec.Qty * tc_rec.InvtMult;
                        item.UnitCost        = (tc_rec.Qty ?? 0m) == 0m ? null : ((tc_rec.TranCost ?? 0m) + (tc_rec.VarCost ?? 0m)) / tc_rec.Qty;
                        item.CostAdj         = tc_rec.CostRefNbr != tc_rec.RefNbr;
                        item.GridLineNbr     = ++gridLineNbr;
                        item.CreatedDateTime = tc_rec.CreatedDateTime;
                        resultList.Add(new PXResult <InventoryTranByAcctEnqResult, INTran>(item, t_rec));
                        cumulativeBalance += rowCost;
                    }
                }
            }
            return(resultList);
        }