Entity Framework Code First approach foreign key with non primary key of another table

Question

Table A:

public A()
{
    Bs = new List<B>();
}

public ICollection<B> Bs {get; set;}

Table B:

public B()
{
    a = new A();
}

public A a {get; set;}

If I have a foreign key of A's primary key int Id column to B's int column, it's working fine.

But I want a foreign key of A's unique key varchar column to B's varchar column, and when I run query it throws an error of converting varchar to int?

In short: can anyone give me idea to deal with non primary key as foreign key to other table in Entity Framework code-first approach?

Answer 1

As of now, Entity Framework does not support alternate keys. They have just started "introducing" them in version 7 - Channel 9 video .