ReportViewer control used with a remote report does not display any data.

Question

Hi there,
I have this .rdl report that runs just fine on our reporting server (I can see that when I try to run the report by accessing its URL in a browser). However, when I run it in my Windows-based application, I do not see any data. My report has two input parameters
and it needs to impersonate the caller's identity because the database uses Windows Authentication.
Here is the code I use:
var reportViewer = new ReportViewer();
// Set Processing Mode
reportViewer.ProcessingMode = ProcessingMode.Remote;
// Set report server and report path
reportViewer.ServerReport.ReportServerUrl = new Uri("http://MySsrsServer/reportserver");
reportViewer.ServerReport.ReportPath = "/Reports/MyReport";
// set the credentials
reportViewer.ServerReport.ReportServerCredentials.ImpersonationUser = WindowsIdentity.GetCurrent();
// create report parameters and set them in the report
var param1 = new ReportParameter("First_Param", "Some string");
var param2 = new ReportParameter("Second_Param", "Some other string");
reportViewer.ServerReport.SetParameters(new ReportParameter[] { param1, param2 });
using (var reportForm = new ReportForm(reportViewer))
reportForm.ShowDialog();
The ReportForm is just a regular Form that has a member of type ReportViewer. In the class' constructor, I assign the member:
public ReportForm(ReportViewer reportViewer)
InitializeComponent();
try
this.reportViewer = reportViewer;
reportViewer.SetDisplayMode(DisplayMode.PrintLayout);
reportViewer.Dock = DockStyle.Fill;
reportViewer.ZoomMode = ZoomMode.Percent;
reportViewer.ZoomPercent = 100;
reportViewer.RefreshReport();
catch (Exception exception)
MessageBox.Show(exception.Message);
Using database level tracing, we were able to confirm that the two Stored Procedures used by the report are called and they return correct and valid records. However, in the form nothing shows up:
Any suggestions?
TIA,
Ed

Answer 1

Good to know CR doesn't like joins of Stored Procedures to something else.
But in my testcase, I finally dropped the link between the ttx file and the stored procedure. Doing so, I was able to run the report from the designer with the stored procedure as datasource instead of the ttx file. At that moment, I still had missing data in my report, while the resultset of the stored procedure returns me all the correct data !
In the mean time, I changed the layout a bit, especially the text fields containing name, address, country and postal code and city of the customer, by just adding some spaces between those seperate databasefields. In fact, there is one text box with all those database fields concatenated one to the other.
And by just adding some spaces in between, my report works fine again ?!
Strange, strange, strange,....