EntityManagerSaveException with a CF model where a one to many navigation property end is mising

Hi,

I have 2 basics classes, with a one to many relationship.
in my model I don't need/want to have the EntityRelatedList on the primary end of the relationship. I have my own dbcontext (pretty small in this case).

My modele looks like this :

    public class User : BaseEntity
    {
        [Key]
        public int Id { get; set; }
        public string Name { get; set; }
    }

    public class Document : BaseEntity
    {
        [Key]
        public int Id { get; set; }
        [Required]
        public string Title { get; set; }
        public User User { get; set; }
    }

When I want to save a new Document I get an EntityManagerSaveException with the message "La séquence ne contient aucun élément correspondant" which I beleive can be translated to "Sequence contains no matching element". Below is the StackTrace:

   à System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
   à IdeaBlade.EntityModel.Edm.EdmSaveExecutor.GetRelatedEnd(IEntity entity, String propertyName)
   à IdeaBlade.EntityModel.Edm.EdmSaveExecutor.ProcessManyToMany(List`1 entities)
   à IdeaBlade.EntityModel.Edm.EdmSaveExecutor.ProcessSaves(IEnumerable`1 groupsByType)
   à IdeaBlade.EntityModel.Edm.EdmSaveExecutor.SaveWithinContext()
   à IdeaBlade.EntityModel.Edm.EdmSaveExecutor.Save(DataSourceResolver dataSourceResolver, IDataSourceKey dsKey, SaveWorkState workState)

If i do the exact same thing without using the entityManager but the dbcontext it works fine.
to make it works with Devforce, I have to add this RelatedEntityList property and do the correct mapping in the dbcontext

below  a project where both case are implemented. Just uncomment the navigation property in the User class and the mapping in the dbcontext to make it work with devforce.

uploads/998/ConsoleApplication3.rar

Edited by Walid - 30-Mar-2012 at 7:28am