Mapping int (Id) to Model instance - automapper

Question

I often have Models and Dtos like this:
// DTO class
public class OrderDto
{
public int Id { get; set; }
public DateTime Date { get set; }
public int ProductId { get; set; }
// ...
}
// Model class
public class Order : BaseObject
{
public DateTime Date { get set; }
public Product Product { get; set; }
// ...
}
// Model class
public class Product : BaseObject
{
// ...
}
In order to map my OrderDto to the Order class I have to configure AutoMapper for this particular "association" like so:
CreateMap<OrderDto, Order>()
.ForMember(m => m.Product, d => d.ResolveUsing((d, m) =>
{
return m.Session.GetObjectByKey<Product>(dto.ProductId);
}))
This is quite cumbersome to do this for each case like this. Therefore I was looking into generalizing this behaviour by using a custom TypeConverter class:
public class IntBaseObjectTypeConverter : ITypeConverter<int, BaseObject>
{
private UnitOfWork uow;
// ...
public BaseObjectConvert(int source, BaseObject destination, ResolutionContext context)
{
return uow.Session.GetObjectByKey(typeof(destination), source);
}
}
However, this will fail of course if the destination is null. Unfortunately the ResolutionContext does not give me any clue about the specific type of the destination property.
Now my question is, if there is another way to achieve with AutoMapper what I would like to do?
Please note that I am not using Entity Framework which of course would solve this issue on the model level with foreign key and navigational properties. I use XPO from DevExpress which does not allow foreign key and navigational properties like in Entity Framework.