Crystal generates empty pages for a datasource with a lot of data

Question

Hi, I hope someone have some hints to solve my problem with generating large reports.
I have SAP Crystal Reports runtime engine for .NET Framework 4 32-bit installed on my Microsoft Windows 2008 R2 Enterprise Server.
Since I update Crystal Reports to 13.0.2.469 large Reports have only empty pages. If I print those Reports the data are visible, the report is displayed correct.
I solved the problem temporarily by setting SeparatePages to true for the CrystalReportViewer Control, but for the future I need the complete report displayed at once.
I would be very pleased about your help / hints.
Regards, Sabine

Answer 1

Thank you for your answer.
My report has only one cross table in it. I can generate it for a dataset with 26 rows. If there are 27 rows the report is empty.
If I use a diffrent report without a crosstab only with repeatable sections and less data, I can make a select for 150 rows. That shows me 5 - 7 pages.
It also makes a difference how the page settings are. If I configurate a smaller border for the top and bottom border I need to change my select to select less record rows and if I configurate a greater border there can be more record rows.
Here an example how I can reproduce my problem:
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using CrystalDecisions.CrystalReports.Engine;
using System.Data;
using System.Net;
namespace EASWebOffice.Pages
    public partial class ReportTest : System.Web.UI.Page
        private HttpWebRequest request;
        protected void Page_Load(object sender, EventArgs e)
            if (!Page.IsPostBack)
                request = (HttpWebRequest)WebRequest.Create(@"http://localhost:54332/Pages/ReportTest.aspx");
                AddOnPreRenderCompleteAsync((BeginEventHandler)BeginAsyncOperation, (EndEventHandler)EndAsyncOperation);
                if (Session["Report"] != null)
                    this.CrystalReportViewer1.ReportSource = Session["Report"];
        IAsyncResult BeginAsyncOperation(object sender, EventArgs e, AsyncCallback cb, object state)
            if (Session["InitialiseReport"] == null)
                ProcessingReportData();
            return request.BeginGetResponse(cb, state);
        void EndAsyncOperation(IAsyncResult ar)
            if (Session["InitialiseReport"] == null)
                Response.AddHeader("Refresh", "1");
                Session["InitialiseReport"] = "performed";
        private void ProcessingReportData()
            CrystalReport2 report = new CrystalReport2();
            // 26 rows works, 27 shows an empty report
            string sql = "select top 26 Auftraggeber as Customer, Kostenträgername as Project, Beschreibung as Description, Stundenanzahl as Hours, UMusername as Ressource from V_MonthEvaluation";
            DataTable data = WebSQLTools.ExecuteToDataTable(sql, Global.Connection, Global.Logger, "");
            DataSet dataSet = new DataSet("DataSet1");
            data.TableName = "DataTable1";
            dataSet.Tables.Add(data);
            report.SetDataSource(dataSet);
            Session["Report"] = report;
Do someone have a similar problem? Is there a solution?
Edited by: wohlsobena on Jan 16, 2012 3:34 PM