private void Airlines_Update_Click(object sender, RoutedEventArgs e) { Service.UpdateAirline(Airlines_Cod3.Text, Airlines_Code4.Text, Airlines_Engname.Text, Airlines_Persname.Text, (short)(Airlines_TypeCombo.SelectedValue), Convert.ToInt32(Airlines_CountryCombo.SelectedValue), (string)(Airlines_Grid.SelectedValue), username, password); Airlines_Refresh_Click(sender, e); }