Report shows no data in the Viewer

Question

Hello,
i'm new to Crystal Reports and i have to develop a few Reports.
I load the data with a stored procedure form a sql-server. This is working and i get all datas i need. But the Report Viewer doesn't show any data.
I don't know why.
If i do it over a select statement and not a stored procedure, the Report Viewer shows me each data set up to 9 times.
I'm working with three tables.
Here is the c# code i wrote.
command = new SqlCommand();
command.Connection = connection;
command.CommandType = CommandType.StoredProcedure;
SqlParameter myParam = new SqlParameter("@FormulareAuftragNr", SqlDbType.VarChar, 5);
myParam.Value = AuftragNr;
command.Parameters.Add(myParam);
command.CommandText = "dbo.Abfrage_Arbeitsplan_Bericht";
connection.Open();
SqlDataAdapter dataAdapter = new SqlDataAdapter(command);
ds = new DataSet("ABC");
dataAdapter.Fill(ds, "dbo.Abfrage_Arbeitsplan_Bericht");
druckarbeitsplan.SetDataSource(ds);
CR Version : latest
VS Version : 10.30319.1
OS : Windows 7
it is for an Windows App
Johannes

Answer 1

CR Version : latest
That is not enough info. All my content below is based on the assumption that you are using CRVS2010 (V. 13.x)...
The code does not show you loading an actual report(?). Also, I'm assuming that after:
druckarbeitsplan.SetDataSource(ds);
you have code to show the report in the viewer or you're printing  exporting the report?
For datasets see [this|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333533323335333433333332%7D.do] KB. Also, make sure you are using the full 4.0 framework, not the client framework.
Ludek
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