How I Can duplicate a complex object with all param/subclas

Question

i'm using Asp.net With Nhibernate 

I want to duplicate complex object with all references  

 

This is the Model:

public class X : AuditableVersionPersistentObject<long,int>{  

private ISet<Clause.Clause> _clauses = new HashSet<Clause.Clause>();

private ISet<DocumentLink> _documentLinks = new HashSet<DocumentLink>();

private long? _EtudiantNumber;

private ApplicationUser _applicationUser;

private Offer _Offer;

private Person.Person _etudiantHolder;

private Person.Person _etudiantPayer;

... }

 

This Is the Function copy :

public virtual Etudiant CopyEtudiant()

{

Etudiant etudiant= new Etudiant (0, 0);

 

etudiant.EtudiantNumber= EtudiantNumber;

....

}