protected override void FillDataSource(OleDbConnection connection, nwindDataSet dataSource) { var customerOrdersTableAdapter = new CustomerOrdersTableAdapter(); customerOrdersTableAdapter.Connection = connection; customerOrdersTableAdapter.Fill(dataSource.CustomerOrders); var orderReportsTableAdapter = new OrderReportsTableAdapter(); orderReportsTableAdapter.Connection = connection; orderReportsTableAdapter.Fill(dataSource.OrderReports); }