private void button_Click(object sender, RoutedEventArgs e)
        {
            ReportDocument report = new ReportDocument();
            report.Load("..\\..\\SampleCrystalReport.rpt");
            using (SampleModel db = new SampleModel())
            {

                SampleDataSet dataset = new SampleDataSet();
                System.Data.DataSet dsCopy = dataset.Copy();

                SampleDataSetTableAdapters.batchTableAdapter adapter = new SampleDataSetTableAdapters.batchTableAdapter();
                adapter.Fill(dataset.batch);
                report.SetDataSource(dataset);

            }
            crystalReportsViewer1.ViewerCore.ReportSource = report;
        }