private void Window_Loaded(object sender, RoutedEventArgs e)
{
WpfSakila.sakilaDataSet sakilaDataSet = ((WpfSakila.sakilaDataSet)(this.FindResource("sakilaDataSet")));
// Cargar datos en la tabla staff. Puede modificar este código según sea necesario.
WpfSakila.sakilaDataSetTableAdapters.staffTableAdapter sakilaDataSetstaffTableAdapter = new WpfSakila.sakilaDataSetTableAdapters.staffTableAdapter();
sakilaDataSetstaffTableAdapter.Fill(sakilaDataSet.staff);
System.Windows.Data.CollectionViewSource staffViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("staffViewSource")));
staffViewSource.View.MoveCurrentToFirst();
// staffDataGrid.SelectedValue = "staff_id";
}