Missing Parameter values error while exporting to PDF (crystal report)

Hello everyone,

I am humbly asking for anybody's help in a matter that seems to go way beyond my understanding. I am trying to load a .rpt file based on a stored procedure that receives only one parameter,  Connect to a SQL server database to get a dataset for the report and then export the report in PDF format. But the code always breaks in the line where export to PDF occurs. I would like some help in that regard since I tried almost everything advised online in that regard.

Thanks so much.

public static void GeneratePhoneReportMemberServicesReport()

        {

        ReportDocument objReportDocument = new ReportDocument(); //Report document

            ConnectionInfo connectionInfo = new CrystalDecisions.Shared.ConnectionInfo();

            //Step 1. Connection to WEB2 to execute the script EXEC_rptPhoneAnswerPerformanceEx_Com.sql

            string crystalPhoneReportPerformancePath = System.Configuration.ConfigurationManager.AppSettings["CrystalPhoneReportsPath"].ToString();

            string crystalPhoneReportOutputMemberServicesPath = @"C:\Users\pma\Documents\Temp\Reports\";

            string crystalPhoneReportSetonPath = System.Configuration.ConfigurationManager.AppSettings["SetonReportPath"].ToString();

            string crystalSetonPhoneReportName = System.Configuration.ConfigurationManager.AppSettings["SetonPhoneReportM17"].ToString();

            string crystalNHPNYPrototypePhoneReportPath = System.Configuration.ConfigurationManager.AppSettings["NHPNYPrototypePhoneReportsPath"].ToString();

            //Step 3. Go to the report location \\bhs05wd001\dev\CrystalReportsDev\Phone Reports and refresh every single Crystal Reports

            // a) Retrieve the partial connection string from Web2 ReportsProduction

            SqlConnectionStringBuilder serverConnectionInfo = new SqlConnectionStringBuilder(DataAccess.GetConnectionString(Constants.WEB2_REPORTSPRODUCTION));

            connectionInfo.ServerName = serverConnectionInfo.DataSource; ;

            connectionInfo.DatabaseName = serverConnectionInfo.InitialCatalog;

            connectionInfo.UserID = serverConnectionInfo.UserID;

            connectionInfo.Password = serverConnectionInfo.Password;

            //b) Generate each Phone report

            try

            {

                string filterExtension = "*.rpt";

                string substringInFileName = "M1_2_PhoneAnswerPerformance";

                List<ReportFile> reportFiles = Utilities.GetFilesFromDirectory(@crystalPhoneReportPerformancePath, filterExtension, substringInFileName).ToList();

                foreach (ReportFile reportFile in reportFiles)

                {

                    string reportFileNameWithoutExtension = Path.GetFileNameWithoutExtension(reportFile.FileName);

                    objReportDocument.Load(string.Format("{0}{1}",@crystalPhoneReportPerformancePath, reportFile.FileName)); //objReportBase.GenerateReport(reportFile.FileName, ParameterArrayList, crystalPhoneReportPerformancePath);

                    foreach(CrystalDecisions.CrystalReports.Engine.Table table in objReportDocument.Database.Tables )

                    {

                        table.LogOnInfo.ConnectionInfo = connectionInfo;

                        table.ApplyLogOnInfo(table.LogOnInfo);

                    }

                    //objReportDocument.SetDatabaseLogon(serverConnectionInfo.UserID, serverConnectionInfo.Password,serverConnectionInfo.DataSource,serverConnectionInfo.InitialCatalog);

                   objReportDocument.SetParameterValue(0, "No"); // the parameter is passed here i.e Index and value

                    objReportDocument.SetDataSource(GetPhoneData(reportFileNameWithoutExtension, Constants.WEB2_REPORTSPRODUCTION));

                    //Save output report

                    string outputDestination = string.Format("{0}{1}{2}", @crystalPhoneReportOutputMemberServicesPath, Path.GetFileNameWithoutExtension(reportFile.FileName), ".pdf");

                    objReportDocument.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, @"C:\dell\file.pdf"); //This the line where the code breaks with the error "Missing parameter values".

                    //Export this file in Excel format as well

                    if (reportFile.FileName.Contains("CLHS_M1_2_PhoneAnswerPerformanceGraphs_Combined"))

                    {

                       // objReportDocument.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.ExcelWorkbook, string.Format("{0}{1}{2}", @crystalPhoneReportOutputMemberServicesPath, Path.GetFileNameWithoutExtension(reportFile.FileName), ".xls"));

                        objCrystalReport.ExportToDisk(ExportFormatType.PortableDocFormat, string.Format("{0}{1}{2}", @crystalPhoneReportOutputMemberServicesPath, Path.GetFileNameWithoutExtension(reportFile.FileName), ".xls"));

                    }

                }

                //release those resources

                objReportDocument.Dispose();

                objReportDocument.Close();

                objReportDocument = null;

            }