HasMany and WithRequired extension methods not found

Question

I am building my data layer class library with Entity Framework 6.1. I created my context and am trying to do the model builder code (or is it derived when I do Add-Migration?

Anyway, I have seen quite some examples but when I try to use .HasMany or .WithRequired on a modelBuilder.Entity() instance they don't appear in Intellisense. What am I missing?

Answer 1

The Entity<T> method is generic (DbModelBuilder.Entity), so, you need to specify the T type you want to start your configuration, for example:

public class Foo
{
  public in Id{get;set;}

  public in BooId{get;set;}

  public virtual Boo Boo{get;set;}
}

public class Boo
{
  public in Id{get;set;}

  public virtual ICollection<Foo> Foos{get;set;}
}

And the configuration on the OnModelCreatingmethod would be:

modelBuilder.Entity<Foo>().HasRequired(f=>f.Boo).WithMany(b=>b.Foos).HasForeignKey(f=>f.BooId);