crystalreportviwer

hi
try the fallowing

DataTable dt = new DataTable();
    ReportDocument MedicalReport = new ReportDocument();
 SqlDataAdapter da1 = new SqlDataAdapter("ProcedureName", con);
            da1.SelectCommand.CommandType = CommandType.StoredProcedure;
            da1.SelectCommand.Parameters.AddWithValue("@SiteId", ddlSite.SelectedValue);
            dt.Clear();
            da1.Fill(dt);
            if (dt.Rows.Count > 0)
            {
                MedicalReport.Load(Server.MapPath("ReportName"));
                MedicalReport.SetDataSource(dt);
                CrystalReportViewer1.ReportSource = MedicalReport;
                CrystalReportViewer1.DataBind();
            }