Report viewer does not load, showing blank space - running local RDLC files

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?

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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.

Report viewer does not load, showing blank space - running local RDLC files

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