Crystal Report Viewer 2008 paging error. Unable to process your request

Question

Hi everyone,
I encountered this error today when clicking on the next page button on the Crystal Report Viewer.  I am running Crystal 2008 SP0.  When i click on show detail i get this:
Programming Error520|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
I have a simple .Net page that has a dropdown control that a user can select to pass the parameter for the report.  I have a server side button that gets the report on the onclick event. The code behind is as follows:
protected void btnReport_Click(object sender, EventArgs e)
        CrystalDecisions.CrystalReports.Engine.ReportDocument Myreport = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
        Myreport.Load(Server.MapPath("Reports/rpt_equipment_summary.rpt"));
        ConnectionInfo crLoginInfo = new ConnectionInfo();
        Database crDatabase;
        Tables crTables;
        CrystalDecisions.CrystalReports.Engine.Table crTable;
        TableLogOnInfo crTableLogOnInfo;
        crLoginInfo.ServerName = "----";
        crLoginInfo.DatabaseName = "------";
        crLoginInfo.UserID = "-----";
        crLoginInfo.Password = "------";
        //Get Table or SP information from report
        crDatabase = Myreport.Database;
        crTables = crDatabase.Tables;
        //Loop through all tables in the report and apply the
        //connection information for each table.
        for (int i = 0; i < crTables.Count; i++)
            crTable = crTables<i>;
            crTableLogOnInfo = crTable.LogOnInfo;
            crTableLogOnInfo.ConnectionInfo =
            crLoginInfo;
            crTable.ApplyLogOnInfo(crTableLogOnInfo);
        //Add Parameter
        ParameterField paramField = new ParameterField();
        ParameterDiscreteValue spValue = new ParameterDiscreteValue();
        ParameterFields ParamFields = new ParameterFields();
        paramField.Name = "@txComments";
        spValue.Value = ddlPastInvoices.SelectedValue.ToString();
        paramField.CurrentValues.Add(spValue);
        ParamFields.Add(paramField);
        CrystalReportViewer1.ParameterFieldInfo = ParamFields;
        CrystalReportViewer1.ReportSource = Myreport;
Is there something i am missing for paging to work?
Thanks in advance

Answer 1

Sorry i forgot to include more information.
.Net 3.5 and I can view this report fine in Crystal report designer.  I get no error message when I switch pages.  The issue happens when i view the report inside a Crystal report viewer control that i have on the page. 
<%@ Register assembly="CrystalDecisions.Web, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" namespace="CrystalDecisions.Web" tagprefix="CR" %>
I haven't tried your sample reports.  Where can i find those?  i have other reports with multiple pages so I can also try using those reports as well. 
Thanks again,
Pablo