private void DoneBtn_Click(object sender, RoutedEventArgs e)
 {
     if (SavingLoading != null)
         SavingLoading.Visibility = System.Windows.Visibility.Visible;
     if (DoneBtn != null)
         DoneBtn.IsEnabled = false;
     SmartMap_DomainContext context = new SmartMap_DomainContext();
     context.PakKonAllProvinceGroups(_grouping.ID,AllGroupsDeleted,null);
 }