Crystal Reports viewer Blank in production

I have a report that works correctly in development but in production displays a blank page.
built in Visual Studios 2010.

I receive no Errors


string reportPath = Server.MapPath("~/Reports/" + _reportData.ReportNameCR);
rptReport.Load(reportPath, OpenReportMethod.OpenReportByTempCopy);
WebMsgBox.Show(_reportData.ReportDataset.Tables[0].Rows.Count.ToString()); // this pops an alert box that shows the correct row count
rptReport.SetDataSource(_reportData.ReportDataset);
crReportViewer.ReportSource = rptReport;
crReportViewer.DataBind();

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the WebMsgBox.Show line pops an alert box.  if I move this after
rptReport.SetDataSource(_reportData.ReportDataset);

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then it never pops.  So it is something to do with the setDataSource, but i am stumped

the production server is windows 2008 r2 sp1
jfb1126Asked:
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mlmccCommented:
Is this against the same database as you developed it?

mlmcc
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jfb1126Author Commented:
it is a local copy of the same DB.  the data there is the same.  the site is connecting to the db fine.  as mentioned above, I put an alert telling me the # of records, so I know the Dataset is populated.  it appears to hang when I invoke the SetDataSource method.
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mlmccCommented:
SO when you run from within VS2010 it is using a local database and when run on the web it uses a different database?

How are you loading the dataset?

Was the report built using a recordset or built against a database?

mlmcc
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jfb1126Author Commented:
the dataset is loaded through the business object.  the report was built against an XSD file.
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mlmccCommented:
If you put a webmsgbox after that line you never see it?

I don't use that version so I don't know what the issue is.

mlmcc
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jfb1126Author Commented:
Nope, the message box never shows after the SetDataSource()  

thanks for trying.
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mlmccCommented:
How is rptReport declared?

mlmcc
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jfb1126Author Commented:
here's the full code.  the report name and any parameters (and parameter Types) are passed into the page.  

ReportData is my business object that loads the dataset.  


using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using GranitizeWarehouseDataObjects;
using Tools_jfb;
using CrystalDecisions.Shared;
using CrystalDecisions.ReportSource;
using CrystalDecisions.CrystalReports.Engine;

namespace GranitizeWarehouseWebsite
{
    public partial class ReportViewer : GranitizePage
    {
        private ReportData _reportData;
        private ReportDocument rptReport;
        private String rptName;
        private String ThisPage;
        private Boolean QuickPrint;

        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                rptReport = new ReportDocument();
                ThisPage = "http://" + Request.ServerVariables["SERVER_NAME"] + Request.ServerVariables["URL"] + "?" + Request.QueryString;


                if (Request["report"] == null)
                    throw new ArgumentException("Report Not Set");
                else
                    rptName = (String)Request["report"];

                this.Title = "Granitize S.O.S. - " + Request["report"];
                _reportData = new ReportData(rptName, CurrentUser);

                //Setup Navigation Links
                String http_Referrer = "";
                http_Referrer = Request.ServerVariables["http_referer"];
                if (http_Referrer != null)
                {
                    if (http_Referrer.IndexOf("ReportViewer") == -1)
                        Session["HTTP_REF"] = Request.ServerVariables["http_referer"];
                }
                linkBack.NavigateUrl = (String)Session["HTTP_REF"];
                if (_reportData.ReportNameCR == "reportPickingSheets.rpt")
                {
                    linkOther.Text = "Continue Processing ->";
                    linkOther.NavigateUrl = "~/EditWhsOrderStatus.aspx?ParamValues=" + Request["ParamValues"];
                    linkOther.Visible = true;
                }

                _reportData.loadPrarameters(Request["ParamName"], Request["ParamValues"], Request["objType"]);
                _reportData.Fill();


                if (Request["C"] == "1")
                {
                    _reportData.ReportDataset.DataSetName = rptName + "_DS";
                    WriteReportSchema(_reportData.ReportDataset);
                }
                else
                {

                    string reportPath = Server.MapPath("~/Reports/" + _reportData.ReportNameCR);
                    rptReport.Load(reportPath, OpenReportMethod.OpenReportByTempCopy);
                    WebMsgBox.Show(_reportData.ReportDataset.Tables[0].Rows.Count.ToString());
                    rptReport.SetDataSource(_reportData.ReportDataset);
                    crReportViewer.ReportSource = rptReport;
                    crReportViewer.DataBind();
                }

                if (Request["QuickPrint"] == "1")
                {
                    QuickPrint = true;
                }
            }
            catch (Exception ex)
            {
                //     Response.Write(ex.Message + "<br/><br/>" + ex.Source + "<br/><br/>" + ex.StackTrace + "<br/><br/>" + ex.Data + "<br/><br/>" + ex.InnerException);
                WebMsgBox.Show(ex.Message);
            }
        }//END Page Load
        protected void Page_Unload(object sender, EventArgs e)
        {   
            if (rptReport !=null)
                rptReport.Dispose();
            if (QuickPrint)
            {
                btnExport_Click(sender, e);
               /* System.Text.StringBuilder sb = new System.Text.StringBuilder();
                sb.Append("<script language=\"javascript\" type=\"text/javascript\">");
                sb.Append("window.opener.BackFromPopup();");
                sb.Append(@"self.close(); ");
                sb.Append(@"</script>");
                ClientScript.RegisterStartupScript(GetType(), "cwin", sb.ToString());*/
            }
        }
        private void ConfigureCrystalReports()
        {
        }

        public void WriteReportSchema(DataSet reportData)
        {
            String path = Server.MapPath("Reports/App_Code/");
            reportData.WriteXmlSchema(path + _reportData.FileName);
        }
       
    }//END CLASS
}

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jfb1126Author Commented:
OK, I made a little progress, the report is loading now (I know this because I can now export it as before I could not), but the viewer still displays blank.

changed line
rptReport.SetDataSource(_reportData.ReportDataset);

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to this:
 DataSet ds = _reportData.ReportDataset;
rptReport.SetDataSource(ds);

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mlmccCommented:
Is there more than 1 page?

The viewer starts on page 1 which could be blank

mlmcc
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jfb1126Author Commented:
RESOLVED:

as described above, declaring a local dataset and setting it = to the one returned by my business object instead of using the business object directly worked to load the report

the non- display issue was resolved by putting a virtual directory on my website pointing to the crystal reports folder on my server
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jfb1126Author Commented:
I solved this myself
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