Serialization Exception Known Type

Hi, I'm having trouble finding a way to serialize a member object(_city).

my entity:

[DataContract]
public class Address : Entity<int>
{
  [DataMember]
   private int _CityId;

   [DataMember]
   private EntityHolder<City> _city = new EntityHolder<City>();

   public City City
   {
       get { return Get(_city); }
       set { Set(_city, value); }
   }
}   

[DataContract]
public class City : Entity<int>
{
  [ValidatePresence]
  [DataMember]

  private string _name;
  private EntityHolder<Address> _address = new EntityHolder<Address>();

  public string Name
  {
    get { return Get(ref _name, "Name"); }
    set { Set(ref _name, value, "Name"); }
   }
}   

error:

Type 'System.DelegateSerializationHolder+DelegateEntry' with data contract name 'DelegateSerializationHolder.DelegateEntry:http://schemas.datacontract.org/2004/07/System' is not expected. Consider using a DataContractResolver or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.

Thanks!

EntityHolder is not intended to be serialised which is why you are seeing the error. Is this a .NET -> .NET scenario? Have you looked at using the DistributedUnitOfWork instead?

Jeremy

somebody can post a sample using serialization with Reverse Association? please! I'm spending 3 weeks to resolver this issue.

sorry my English!

Have a look at http://www.mindscapehq.com/documentation/lightspeed/Building-Distributed-Applications-/Distributed-Entity-Programming if you are intending to transfer object graphs between a client and server in a .NET to .NET scenario. As mentioned above serialisation of an EntityHolder is not supported.

Jeremy