KnownTypesDictionary.cs

  [KnownType("GetKnownTypes")] 
  public class KnownTypesDictionary : Dictionary<string, object>
  {
    private static Type[] KNOWN_TYPES = 
                                        {
                                          typeof(OrderVO),
                                          typeof(PostVO),
                                          typeof(SiteVO),
                                          typeof(CommentVO),
                                          typeof(ViewObjectBase),
                                          typeof(ObservableCollection<OrderVO>),
                                          typeof(ObservableCollection<SiteVO>),
                                          typeof(ObservableCollection<CommentVO>),
                                          typeof(ObservableCollection<PostVO>),
                                          typeof(KnownTypesDictionary)
                                        };
  public KnownTypesDictionary()
      : base()
    {

    }

    public KnownTypesDictionary(IDictionary<String, Object> originalDictionary) : base(originalDictionary)
    {

    }

    public static IEnumerable<Type> GetKnownTypes()
    {
      return KNOWN_TYPES;
    }
  }