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BOOK: Professional Crystal Reports for VS.NET
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Old October 30th, 2007, 04:49 AM
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Default Database Connector Error

When I try to generate a report on a production site I am getting the following error:
Database Connector Error: ''Error in File C:\DOCUME~1\ORIEL\IWAM_S~1\LOCALS~1\Temp\Applicati on Stage {BAAA3BC1-2A40-4695-B048-E8C70C38A7FF}.rpt

/// <summary>
    /// Event actioned when the 'Generate' button ispressed
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnGenerate_Click(object sender, EventArgs e)
        OleDbDataReader rdrReports;
        ReportDocument rdReport = new ReportDocument();
        ExportOptions eoReport;
        ParameterFieldDefinitions crParameterFieldDefinitions;
        ParameterFieldDefinition crSartDateParam;
        ParameterFieldDefinition crEndDateParam;
        ParameterDiscreteValue disvStart;
        ParameterDiscreteValue disvEnd;
        ParameterValues crParameter1;
        ParameterValues crParameter2;
        DiskFileDestinationOptions dfdoCRExport;
        Configuration config;
        OleDataHelper helper;
        ConnectionInfo crInfo = new ConnectionInfo();

        string strSQL = string.Empty;
        string strReportFile = string.Empty;
        string strMessage = string.Empty;
        string strFilename = string.Empty;
        string strFilepath = string.Empty;
        string strSubName = string.Empty;
        string strDataPath = string.Empty;
        string strServerName = string.Empty;
        string strProgress = string.Empty;

        int intReportID;
        int intStatus = 0;
        bool blnDatesParam = false;
        bool blnEndDateParam = false;
        string strTemp = string.Empty;

        helper = new OleDataHelper();
        rdrReports = null;

        //set up access to the web config file and its settings
        config = WebConfigurationManager.OpenWebConfiguration(Reque st.ApplicationPath);
        AppSettingsSection appSettings = (AppSettingsSection)config.GetSection("appSettings ");

            //Retrieve which report we are dealing with from the drop down list
            intReportID = Convert.ToInt16(ddlTitles.SelectedValue);
            intStatus = Convert.ToInt16(hidStatus.Value);

            strProgress = "Retrieving Report Details";
            //Get information of the report such which parameter data is required
            strSQL = "select * from Q_ReportDetails where Report_ID=" + intReportID.ToString();
            rdrReports = helper.ExecuteReader("Goldmine", strSQL);

            if (rdrReports.HasRows)
                strReportFile = "/OrielGold/reports/" + rdrReports.GetString(1);
                blnDatesParam = rdrReports.GetBoolean(2);
                blnEndDateParam = rdrReports.GetBoolean(3);

            //if using the date parameters then check the validitity of inputs
            if (blnDatesParam)
                if (!bdplFrom.ValidDateEntered)
                    strMessage += "From Date is invalid\n";
                else if (bdplFrom.IsNull) // If it's not null, then create Text for Label.
                    strMessage += "From Date is absent\n";
                if (!bdplTo.ValidDateEntered)
                    strMessage += "To Date is invalid\n";
                else if (bdplTo.IsNull) // If it's not null, then create Text for Label.
                    strMessage += "To Date is absent\n";

            if (blnEndDateParam)
                if (!bdplEndDate.ValidDateEntered)
                    strMessage += "End Date is invalid\n";
                else if (bdplEndDate.IsNull) // If it's not null, then create Text for Label.
                    strMessage += "End Date is absent\n";

            //check for validation errors
            if (strMessage.Length > 0)
                strProgress = "Input Validation:";
                throw new ArgumentException(strMessage);

            //Create the report through Crystal Reports
            //rdReport = new ReportDocument();
            strProgress = "Report Load";

            strProgress = "Setting up Connection Info:";
            crInfo.DatabaseName = appSettings.Settings["AccessDB"].Value;
            crInfo.ServerName = appSettings.Settings["AccessDB"].Value;
            crInfo.UserID = ""; // "Goldmine";
            crInfo.Password = ""; // "orielgold";

            strProgress = "Assigning Connection Info, main report:";
            foreach (CrystalDecisions.CrystalReports.Engine.Table table in rdReport.Database.Tables)
                AssignTableConnections(table, crInfo);
            strProgress = "Assigning Connection Info, subreports:";
            foreach(CrystalDecisions.CrystalReports.Engine.Sec tion section in rdReport.ReportDefinition.Sections)
                foreach(CrystalDecisions.CrystalReports.Engine.Rep ortObject reportObject in section.ReportObjects)
                    if (reportObject.Kind == ReportObjectKind.SubreportObject)
                        SubreportObject subReport = (SubreportObject)reportObject;
                        ReportDocument subDocument = subReport.OpenSubreport(subReport.SubreportName);
                        foreach(CrystalDecisions.CrystalReports.Engine.Tab le table in subDocument.Database.Tables)

            strProgress = "Setting Report Parameters:";
            //set report parameters
            crParameterFieldDefinitions = rdReport.DataDefinition.ParameterFields;
            if (blnDatesParam)
                crSartDateParam = crParameterFieldDefinitions["Start Date"];
                crEndDateParam = crParameterFieldDefinitions["End Date"];
                crParameter1 = crSartDateParam.CurrentValues;
                crParameter2 = crEndDateParam.CurrentValues;

                disvStart = new ParameterDiscreteValue();
                disvStart.Value = bdplFrom.SelectedDateFormatted;
                disvEnd = new ParameterDiscreteValue();
                disvEnd.Value = bdplTo.SelectedDateFormatted;



            if (blnEndDateParam)
                crEndDateParam = crParameterFieldDefinitions["End Date"];
                crParameter2 = crEndDateParam.CurrentValues;

                disvEnd = new ParameterDiscreteValue();
                disvEnd.Value = bdplEndDate.SelectedDateFormatted;


            strProgress = "Report Setup:";
            //create the report as a pdf file
            //create a unique filename based on the system date and time
            System.DateTime dt = System.DateTime.Now;
            strFilename = "Temp" + dt.ToString("yyyyMMddhhmmss") + ".pdf";

            strFilepath = "/OrielGold/pdfs/";
            dfdoCRExport = new DiskFileDestinationOptions();
            dfdoCRExport.DiskFileName = Server.MapPath(strFilepath + strFilename);
            eoReport = new ExportOptions();
            eoReport = rdReport.ExportOptions;
            eoReport.DestinationOptions = dfdoCRExport;
            eoReport.ExportDestinationType = ExportDestinationType.DiskFile;
            eoReport.ExportFormatType = ExportFormatType.PortableDocFormat;
            eoReport.ExportFormatOptions = new PdfRtfWordFormatOptions();

            strProgress = "Report Generation:";
            //export the report and send user to the pdf viewer screen
            if (intStatus == 2)
                strSQL = "Update Reports set Generated=Yes where Report_ID = " + intReportID.ToString();
                helper.ExecuteNonQuery("Goldmine", strSQL);
            Response.Redirect("ReportViewer.aspx?Report=" + strFilename);

        catch (Exception ex)
            (Master.FindControl("lblErrorMessage") as Label).Text = strProgress + " :" + ex.Message;
            if (rdrReports != null)
            if (rdReport != null)

    private static void AssignTableConnections(CrystalDecisions.CrystalRep orts.Engine.Table table, ConnectionInfo connection)
            //cache the logon info block
            TableLogOnInfo logOnInfo = table.LogOnInfo;

            //set the connection
            logOnInfo.ConnectionInfo = connection;
            //apply the connection
        catch (Exception ex)
            throw new ArgumentException("Assign Table Connections: " + ex.Message);
Web.Config extract


      <add key ="AccessDB" value="d:\dev\goldmine\orielgold\Goldmine.mdb"/>

      <add key ="SourceFolder" value="d:\dev\goldmine\" />
      <add key ="DestinationFolder" value="d:\GMBackup\"/>

      <add key="ReportsFolder" value="d:\dev\goldmine\latest reports\"/>
      <add key="ZipFolder" value="d:\dev\goldmine\latest reports\Archive\"/>

    <add name="OrielAdmin" connectionString="Data Source=(local);Initial Catalog=OrielAdmin;Integrated Security=False;User=OrielUser;Password=mrpieman" providerName="System.Data.SqlClient"/>

    <add name="Orion" connectionString="Data Source=(local);Initial Catalog=PhaseIV;Integrated Security=False;User=OrielUser;Password=mrpieman" providerName="System.Data.SqlClient"/>

    <add name="Goldmine" connectionString="Provider=Microsoft.Jet.OLEDB.4.0 ;Data Source=d:\dev\Goldmine\OrielGold\goldmine.mdb"/>

    <add name="GM" connectionString="Data Source=d:\dev\goldmine\common;Extended Properties=dBase IV;provider=Microsoft.Jet.OLEDB.4.0"/>
    <add name="GMBase" connectionString="Data Source=d:\dev\Goldmine\GMBase;Extended Properties=dBase IV;provider=Microsoft.Jet.OLEDB.4.0"/>

To make sure the database location routine was working I moved all the database files to a different location, modified the web.config file and then tried to generate the report and it did so without any problem.

has anybody any idea on what the error means?


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