private void addFilters(DBNode<DBMovieInfo> node)
 {
     foreach (IFilter<DBMovieInfo> currFilter in node.GetAllFilters())
         if (!Filters.Contains(currFilter))
             Filters.Add(currFilter);
 }
 private void removeFilters(DBNode<DBMovieInfo> node)
 {
     foreach (IFilter<DBMovieInfo> currFilter in node.GetAllFilters())
         if (Filters.Contains(currFilter))
             Filters.Remove(currFilter);
 }