Question

I’m trying to use IoC on small project for which I use one commercional ORM.

There is collection of ‘User’ Entites on my Entity ‘Project’. When I pass an interface to the method, I’m unable to add th eobject to the collection of ‘User’ entities, because it is represented by some ORM EntityCollection class.

Example:

//'this' is a partial class to the modeled Entity<int>
public void AddToCollection(IUser user)
{
    this.Users.Add(user); //this.Users is type of EntityCollection.
}

I see the two possibilities here and I don’t know which one is the best practice.

1. Change the EntityCollection to IEnumerable (which is not possible)
2. Cast IUser to User

Or may be I’m going completely wrong way wiht IoC, what is the best practice here?

Answer 1

as for me, it’s not a good to use interface for entities. prefer base class instead.
Best regard