Adding additional select criteria in code behind

I'm creating a Crystal Report viewer in an ASP.NET web page and all works fine (except I can't go beyond page 2 but that's another problem). However I now want to add some extra selection criteria to any that may already be present in the report.

I have a class which loads the existing .rpt file and adds the connection info :

protected ReportDocument LoadCrystalReport(string reportFile) { if (!string.IsNullOrEmpty(reportFile)) { // Get the required report and load it into the viewer ReportDocument crRpt = new ReportDocument(); crRpt.Load(reportFile);

// now logon to the files used by the current report ConnectionInfo connectionInfo = new ConnectionInfo(); TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();

connectionInfo.ServerName = dbServer.Value; connectionInfo.DatabaseName = addrBook.Value; connectionInfo.UserID = userName.Value; SymCrypt sc = new SymCrypt(); connectionInfo.Password = sc.Decrypt(userPass.Value);

foreach (CrystalDecisions.CrystalReports.Engine.Table crTable in crRpt.Database.Tables) { crtableLogoninfo = crTable.LogOnInfo; crtableLogoninfo.ConnectionInfo = connectionInfo; crTable.ApplyLogOnInfo(crtableLogoninfo); }

return crRpt; }

return null; }

And the code to call this class and display the report and extend the selection is:

// load our report crRpt = LoadCrystalReport(Path.Combine(reportPath.Value, reportName.Value));

crystalReportViewer.ReportSource = crRpt; crystalReportViewer.PrintMode = CrystalDecisions.Web.PrintMode.Pdf; string extraSelects = string.Empty;

// This checks for additional select criteria if (!string.IsNullOrEmpty(extraSelects = SetRecordSelectionForReport()))

{

// Do we have to add this to existing criteria ??

if (string.IsNullOrEmpty(crRpt.RecordSelectionFormula)) { crRpt.RecordSelectionFormula = extraSelects; } else { crRpt.RecordSelectionFormula = string.Format("{0} and {1}", crRpt.RecordSelectionFormula, extraSelects); } }

However when I assign my joined selection criteria to crRpt.ReportSelectionFormula it immediately clears all existing data and leaves the value empty.

If I check the value of RecordSelectionFormula prior to any assignment it has the value :

" ( ( {Opportunity.Status} = 3 AND {@0 £ balance remains 24 months} ) AND ( {Address.Country} <> \"Channel Islands\" ) ) ".

I then want to append further criteria:

"( {Opportunity.Opp_Id} IN [ \"060918022732098261889C\", \"060908008692098261889C\" ] )"

so i concatenate the 2 strings with an "AND" giving :

" ( ( {Opportunity.Status} = 3 AND {@0 £ balance remains 24 months} ) AND ( {Address.Country} <> \"Channel Islands\" ) ) AND ( {Opportunity.Opp_Id} IN [ \"060918022732098261889C\", \"060908008692098261889C\" ] )"

but this clears the existing criteria and doesn't assign my new selection.

Is there something I'm missing with regard to setting a new selection criteria ??