Question

I got a problem with reporting services, running local rdlc files on the 2005 version.

I have in the HTML a report viewer set to run locally as follows :

 <rsweb:ReportViewer ID="ReportingServicesReportViewer" runat="server" Height="100%"
            ProcessingMode="Local" ShowParameterPrompts="False" Width="100%">
        </rsweb:ReportViewer>

In the code

// create SqlConnection
        SqlConnection myConnection = new SqlConnection(ConnectionString);
        myCommand.Connection = myConnection;
        SqlDataAdapter da = new SqlDataAdapter(myCommand);

        //get the data
        DataSet data = new DataSet();
        da.Fill(data);

        if (data != null && data.Tables.Count > 0 && data.Tables[0].Rows.Count > 0)
        {
            ReportingServicesReportViewer.Visible = true;
            ltrStatus.Text = string.Empty;

            //provide local report information to viewer
            ReportingServicesReportViewer.LocalReport.ReportPath = Server.MapPath(Report.RDLCPath);

            //bind the report attributes and data to the reportviewer
            ReportDataSource rds = new ReportDataSource("DataSet1", data.Tables[0]);
            ReportingServicesReportViewer.LocalReport.DataSources.Clear();
            ReportingServicesReportViewer.LocalReport.DataSources.Add(rds);
            ReportingServicesReportViewer.LocalReport.Refresh();
        }
        else
        {
            ReportingServicesReportViewer.Visible = false;
            ltrStatus.Text = "No data to display.";
        }

When the method to populate the report viewer with the results of the report is executed, nothing comes up as if the report viewer is not even there.

What I did to trouble shoot till now:

• Checked the event viewer for errors and this is the only thing related
  which I get, [Domain]\sp_dbadmin Reason:
  Failed to open the explicitly specified database. . However,
  my user which I am connecting is a sysadmin. I have checked that and
  am sure because I checked the sys.server_role_members
• I tried impersonating the logged in user, to no avail
• I created a specific user with sysadmin rights, and gave all access rights both from IIS and also on the sql server 2008.

Has anyone encountered a problem similar to this, any ideas?

Answer 1

Try using a simple report , sometimes reportviewer throws exception caused by invalid RDLC and shows an empty report.

Try also to debug the project and look at the output window in Visual Studio: you will see the warning raised bu the RDL engine, it could be useful to investigate the reason of the error.