Entity framework code-first null foreign key

Question

I have a User < Country model. A user belongs to a country, but may not belong to any (null foreign key).

How do I set this up? When I t

Answer 1

I have the same problem now , I have foreign key and i need put it as nullable, to solve this problem you should put

    modelBuilder.Entity()
        .HasMany(c => c.Users)
        .WithOptional(c => c.Country)
        .HasForeignKey(c => c.CountryId)
        .WillCascadeOnDelete(false);

in DBContext class I am sorry for answer you very late :)