水晶报表查看器很慢

我的水晶报表要永远在我的应用程序加载 - 至少2分钟:这是我的代码。我该怎么办了？

private void button1p_Click(object sender, RoutedEventArgs e)

        {

            Windows.CrystalReportViewerWindow wnd = new ePAM.Windows.CrystalReportViewerWindow();

 

            // Change 'OperationalUnitTableAdapter' to appropriate adapter.

            ePAM.Reports.StrategyDataSetTableAdapters.OperationalUnitTableAdapter adapter = new ePAM.Reports.StrategyDataSetTableAdapters.OperationalUnitTableAdapter();

            adapter.Connection.ConnectionString = BusinessLayer.BusinessLayer.GetConnectionString();

            adapter.Fill(dataSet.OperationalUnit);

 

            // Change 'Operational_Units' to appropriate report.

            Reports.Print.Operational_Units objReport = new Reports.Print.Operational_Units();

 

            // Change 'dataSet.OperationalUnit' to 'dataSet.***'.

            objReport.SetDataSource(dataSet);

 

            wnd.MyReportViewer.ReportSource = objReport;

            wnd.MyReportViewer.RefreshReport();

            wnd.ShowDialog();

 

        }