private void BtCountryClick(object sender, RoutedEventArgs e)
 {
     var cd = new CountryDetail(PageMode.AddMode);
     cd.Show();
 }
 private void CountryViewExecuted(object sender, ExecutedRoutedEventArgs e)
 {
     var currencyId = (int) e.Parameter;
     var cd = new CountryDetail(currencyId, PageMode.ViewMode);
     cd.Show();
     e.Handled = true;
 }