/// <summary>
 /// Save_Click
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void Save_Click(object sender, RoutedEventArgs e)
 {
     OFF.clear_wfacets();
     OFF.add_wfacet("product_name", "Petit salé aux lentilles");
     OFF.Login = Login.Text;
     OFF.Code  = Product.id;
     OFF.Pwd   = Pwd.Password;
     MessageBox.Show(OFF.set_product());
 }