private void Load()
 {
     _messenger.Publish(new LoadingChangedMessage(this, true));
     try
     {
         List <Pattern> favorites = _favoritesService.All();
         foreach (var favorite in favorites)
         {
             Items.Add(favorite);
         }
     }
     finally
     {
         _messenger.Publish(new LoadingChangedMessage(this, false));
     }
 }