reportDocument.SetDataSource(MyDataSet);

        private OdbcConnection cnn = new OdbcConnection();
        private DataSet ds = new DataSet();
        private ReportDocument reportDocument;

        //........................................................................................

        private void ConfigureCrystalReports()
        {
            reportDocument = new ReportDocument();
            string reportPath = "E:\\WORK\\CRTest2\\Reports\\myreport.rpt";
            reportDocument.Load(reportPath);
            
            reportDocument.SetDataSource(ds);
            reportDocument.SetParameterValue("ReportDate", "09-07-2012");

            crystalReportViewer1.ReportSource = reportDocument;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            cnn.ConnectionString = "DSN=mybase;UID=mylogin;PWD=123456";
            OdbcCommand cmd = cnn.CreateCommand();
            cmd.CommandText = "execute procedure myProc (KData=('09-07-2012'));";

            cnn.Open();
            cmd.ExecuteNonQuery();

            OdbcDataAdapter daDoc = new OdbcDataAdapter("SELECT * FROM table1", cnn);
            OdbcDataAdapter daUsers = new OdbcDataAdapter("SELECT * FROM table2", cnn);
            daDoc.Fill(ds, "Table1");
            daUsers.Fill(ds, "Table2");

            ConfigureCrystalReports();
            
            //..................................................................
       }