public static bool DropBankStatement(Int32 AEpStatementKey)
        {
            TDBTransaction Transaction = DBAccess.GDBAccessObj.BeginTransaction(IsolationLevel.ReadCommitted);

            BankImportTDS MainDS = new BankImportTDS();

            AEpStatementAccess.LoadByPrimaryKey(MainDS, AEpStatementKey, Transaction);
            AEpTransactionAccess.LoadViaAEpStatement(MainDS, AEpStatementKey, Transaction);

            DBAccess.GDBAccessObj.RollbackTransaction();

            foreach (AEpStatementRow stmtRow in MainDS.AEpStatement.Rows)
            {
                stmtRow.Delete();
            }

            foreach (AEpTransactionRow transactionRow in MainDS.AEpTransaction.Rows)
            {
                transactionRow.Delete();
            }

            MainDS.ThrowAwayAfterSubmitChanges = true;
            try
            {
                BankImportTDSAccess.SubmitChanges(MainDS);
                return(true);
            }
            catch (Exception)
            {
                return(false);
            }
        }
        public static BankImportTDS GetBankStatementTransactionsAndMatches(Int32 AStatementKey, Int32 ALedgerNumber)
        {
            TDBTransaction Transaction = DBAccess.GDBAccessObj.BeginTransaction(IsolationLevel.Serializable);

            BankImportTDS ResultDataset = new BankImportTDS();
            string        MyClientID    = DomainManager.GClientID.ToString();

            TProgressTracker.InitProgressTracker(MyClientID,
                                                 Catalog.GetString("Load Bank Statement"),
                                                 100.0m);

            TProgressTracker.SetCurrentState(MyClientID,
                                             Catalog.GetString("loading statement"),
                                             0);

            try
            {
                AEpStatementAccess.LoadByPrimaryKey(ResultDataset, AStatementKey, Transaction);

                if (ResultDataset.AEpStatement[0].BankAccountCode.Length == 0)
                {
                    throw new Exception("Loading Bank Statement: Bank Account must not be empty");
                }

                ACostCentreAccess.LoadViaALedger(ResultDataset, ALedgerNumber, Transaction);

                AMotivationDetailAccess.LoadViaALedger(ResultDataset, ALedgerNumber, Transaction);

                AEpTransactionAccess.LoadViaAEpStatement(ResultDataset, AStatementKey, Transaction);

                BankImportTDS TempDataset = new BankImportTDS();
                AEpTransactionAccess.LoadViaAEpStatement(TempDataset, AStatementKey, Transaction);
                AEpMatchAccess.LoadViaALedger(TempDataset, ResultDataset.AEpStatement[0].LedgerNumber, Transaction);

                // load all bankingdetails and partner shortnames related to this statement
                string sqlLoadPartnerByBankAccount =
                    "SELECT DISTINCT p.p_partner_key_n AS PartnerKey, " +
                    "p.p_partner_short_name_c AS ShortName, " +
                    "t.p_branch_code_c AS BranchCode, " +
                    "t.a_bank_account_number_c AS BankAccountNumber " +
                    "FROM PUB_a_ep_transaction t, PUB_p_banking_details bd, PUB_p_bank b, PUB_p_partner_banking_details pbd, PUB_p_partner p " +
                    "WHERE t.a_statement_key_i = " + AStatementKey.ToString() + " " +
                    "AND bd.p_bank_account_number_c = t.a_bank_account_number_c " +
                    "AND b.p_partner_key_n = bd.p_bank_key_n " +
                    "AND b.p_branch_code_c = t.p_branch_code_c " +
                    "AND pbd.p_banking_details_key_i = bd.p_banking_details_key_i " +
                    "AND p.p_partner_key_n = pbd.p_partner_key_n";

                DataTable PartnerByBankAccount = DBAccess.GDBAccessObj.SelectDT(sqlLoadPartnerByBankAccount, "partnerByBankAccount", Transaction);
                PartnerByBankAccount.DefaultView.Sort = "BranchCode, BankAccountNumber";

                // get all recipients that have been merged
                string sqlGetMergedRecipients =
                    string.Format(
                        "SELECT DISTINCT p.p_partner_key_n AS PartnerKey, p.p_status_code_c AS StatusCode FROM PUB_a_ep_match m, PUB_p_partner p " +
                        "WHERE (m.p_recipient_key_n = p.p_partner_key_n OR m.p_donor_key_n = p.p_partner_key_n) AND p.p_status_code_c = '{0}'",
                        MPartnerConstants.PARTNERSTATUS_MERGED);
                DataTable MergedPartners = DBAccess.GDBAccessObj.SelectDT(sqlGetMergedRecipients, "mergedPartners", Transaction);
                MergedPartners.DefaultView.Sort = "PartnerKey";

                DBAccess.GDBAccessObj.RollbackTransaction();

                string BankAccountCode = ResultDataset.AEpStatement[0].BankAccountCode;

                TempDataset.AEpMatch.DefaultView.Sort = AEpMatchTable.GetMatchTextDBName();

                SortedList <string, AEpMatchRow> MatchesToAddLater = new SortedList <string, AEpMatchRow>();

                int count = 0;

                // load the matches or create new matches
                foreach (BankImportTDSAEpTransactionRow row in ResultDataset.AEpTransaction.Rows)
                {
                    TProgressTracker.SetCurrentState(MyClientID,
                                                     Catalog.GetString("finding matches") +
                                                     " " + count + "/" + ResultDataset.AEpTransaction.Rows.Count.ToString(),
                                                     10.0m + (count * 80.0m / ResultDataset.AEpTransaction.Rows.Count));
                    count++;

                    BankImportTDSAEpTransactionRow tempTransactionRow =
                        (BankImportTDSAEpTransactionRow)TempDataset.AEpTransaction.Rows.Find(
                            new object[] {
                        row.StatementKey,
                        row.Order,
                        row.DetailKey
                    });

                    // find a match with the same match text, or create a new one
                    if (row.IsMatchTextNull() || (row.MatchText.Length == 0) || !row.MatchText.StartsWith(BankAccountCode))
                    {
                        row.MatchText = TBankImportMatching.CalculateMatchText(BankAccountCode, row);

                        tempTransactionRow.MatchText = row.MatchText;
                    }

                    DataRowView[] matches = TempDataset.AEpMatch.DefaultView.FindRows(row.MatchText);

                    if (matches.Length > 0)
                    {
                        Decimal sum = 0.0m;

                        // update the recent date
                        foreach (DataRowView rv in matches)
                        {
                            AEpMatchRow r = (AEpMatchRow)rv.Row;

                            sum += r.GiftTransactionAmount;

                            // check if the recipient key is still valid. could be that they have married, and merged into another family record
                            if ((r.RecipientKey != 0) &&
                                (MergedPartners.DefaultView.FindRows(r.RecipientKey).Length > 0))
                            {
                                TLogging.LogAtLevel(1, "partner has been merged: " + r.RecipientKey.ToString());
                                r.RecipientKey = 0;
                                r.Action       = MFinanceConstants.BANK_STMT_STATUS_UNMATCHED;
                            }

                            // check if the donor key is still valid. could be that they have married, and merged into another family record
                            if ((r.DonorKey != 0) &&
                                (MergedPartners.DefaultView.FindRows(r.DonorKey).Length > 0))
                            {
                                TLogging.LogAtLevel(1, "partner has been merged: " + r.DonorKey.ToString());
                                r.DonorKey = 0;
                                r.Action   = MFinanceConstants.BANK_STMT_STATUS_UNMATCHED;
                            }

                            if (r.RecentMatch < row.DateEffective)
                            {
                                r.RecentMatch = row.DateEffective;
                            }

                            // do not modify tempRow.MatchAction, because that will not be stored in the database anyway, just costs time
                            row.MatchAction = r.Action;

                            if (r.IsDonorKeyNull() || (r.DonorKey <= 0))
                            {
                                FindDonorByAccountNumber(r, PartnerByBankAccount.DefaultView, row.BranchCode, row.BankAccountNumber);
                            }
                        }

                        if (sum != row.TransactionAmount)
                        {
                            TLogging.Log("we should drop this match since the total is wrong: " + row.Description);
                            row.MatchAction = MFinanceConstants.BANK_STMT_STATUS_UNMATCHED;

                            foreach (DataRowView rv in matches)
                            {
                                AEpMatchRow r = (AEpMatchRow)rv.Row;
                                r.Action = MFinanceConstants.BANK_STMT_STATUS_UNMATCHED;
                            }
                        }
                    }
                    else if (!MatchesToAddLater.ContainsKey(row.MatchText))
                    {
                        // create new match
                        AEpMatchRow tempRow = TempDataset.AEpMatch.NewRowTyped(true);
                        tempRow.EpMatchKey            = (TempDataset.AEpMatch.Count + MatchesToAddLater.Count + 1) * -1;
                        tempRow.Detail                = 0;
                        tempRow.MatchText             = row.MatchText;
                        tempRow.LedgerNumber          = ALedgerNumber;
                        tempRow.GiftTransactionAmount = row.TransactionAmount;
                        tempRow.Action                = MFinanceConstants.BANK_STMT_STATUS_UNMATCHED;

                        FindDonorByAccountNumber(tempRow, PartnerByBankAccount.DefaultView, row.BranchCode, row.BankAccountNumber);

#if disabled
                        // fuzzy search for the partner. only return if unique result
                        string sql =
                            "SELECT p_partner_key_n, p_partner_short_name_c FROM p_partner WHERE p_partner_short_name_c LIKE '{0}%' OR p_partner_short_name_c LIKE '{1}%'";
                        string[] names = row.AccountName.Split(new char[] { ' ' });

                        if (names.Length > 1)
                        {
                            string optionShortName1 = names[0] + ", " + names[1];
                            string optionShortName2 = names[1] + ", " + names[0];

                            DataTable partner = DBAccess.GDBAccessObj.SelectDT(String.Format(sql,
                                                                                             optionShortName1,
                                                                                             optionShortName2), "partner", Transaction);

                            if (partner.Rows.Count == 1)
                            {
                                tempRow.DonorKey = Convert.ToInt64(partner.Rows[0][0]);
                            }
                        }
#endif

                        MatchesToAddLater.Add(tempRow.MatchText, tempRow);

                        // do not modify tempRow.MatchAction, because that will not be stored in the database anyway, just costs time
                        row.MatchAction = tempRow.Action;
                    }
                }

                // for speed reasons, add the new rows after clearing the sort on the view
                TempDataset.AEpMatch.DefaultView.Sort = string.Empty;

                foreach (AEpMatchRow m in MatchesToAddLater.Values)
                {
                    TempDataset.AEpMatch.Rows.Add(m);
                }

                TProgressTracker.SetCurrentState(MyClientID,
                                                 Catalog.GetString("save matches"),
                                                 90.0m);

                TempDataset.ThrowAwayAfterSubmitChanges = true;
                // only store a_ep_transactions and a_ep_matches, but without additional typed fields (ie MatchAction)
                BankImportTDSAccess.SubmitChanges(TempDataset.GetChangesTyped(true));
            }
            catch (Exception e)
            {
                TLogging.Log(e.GetType().ToString() + " in BankImport, GetBankStatementTransactionsAndMatches; " + e.Message);
                TLogging.Log(e.StackTrace);
                DBAccess.GDBAccessObj.RollbackTransaction();
                throw;
            }

            // drop all matches that do not occur on this statement
            ResultDataset.AEpMatch.Clear();

            // reloading is faster than deleting all matches that are not needed
            string sqlLoadMatchesOfStatement =
                "SELECT DISTINCT m.* FROM PUB_a_ep_match m, PUB_a_ep_transaction t WHERE t.a_statement_key_i = ? AND m.a_ledger_number_i = ? AND m.a_match_text_c = t.a_match_text_c";

            OdbcParameter param = new OdbcParameter("statementkey", OdbcType.Int);
            param.Value = AStatementKey;
            OdbcParameter paramLedgerNumber = new OdbcParameter("ledgerNumber", OdbcType.Int);
            paramLedgerNumber.Value = ALedgerNumber;

            DBAccess.GDBAccessObj.SelectDT(ResultDataset.AEpMatch,
                                           sqlLoadMatchesOfStatement,
                                           null,
                                           new OdbcParameter[] { param, paramLedgerNumber }, -1, -1);

            // update the custom field for cost centre name for each match
            foreach (BankImportTDSAEpMatchRow row in ResultDataset.AEpMatch.Rows)
            {
                ACostCentreRow ccRow = (ACostCentreRow)ResultDataset.ACostCentre.Rows.Find(new object[] { row.LedgerNumber, row.CostCentreCode });

                if (ccRow != null)
                {
                    row.CostCentreName = ccRow.CostCentreName;
                }
            }

            // remove all rows that we do not need on the client side
            ResultDataset.AGiftDetail.Clear();
            ResultDataset.AMotivationDetail.Clear();
            ResultDataset.ACostCentre.Clear();

            ResultDataset.AcceptChanges();

            if (TLogging.DebugLevel > 0)
            {
                int CountMatched = 0;

                foreach (BankImportTDSAEpTransactionRow transaction in ResultDataset.AEpTransaction.Rows)
                {
                    if (!transaction.IsMatchActionNull() && (transaction.MatchAction != MFinanceConstants.BANK_STMT_STATUS_UNMATCHED))
                    {
                        CountMatched++;
                    }
                }

                TLogging.Log(
                    "Loading bank statement: matched: " + CountMatched.ToString() + " of " + ResultDataset.AEpTransaction.Rows.Count.ToString());
            }

            TProgressTracker.FinishJob(MyClientID);

            return(ResultDataset);
        }