Defining many to many relation in code first entity framework

Question

I have 3 classes in my model as you can see below.

[Table("UserProfile")]
public class UserProfile
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseG         


        

Answer 1

In EntityFramework 6.1, you don't need to do any of this - just add collections of the two types to each class and everything falls into place.

public class UserProfile {
    public int Id { get; set; }
    public string UserName { get; set; }
    public virtual ICollection MartialArts { get; set; }

    public UserProfile() {
        MartialArts = new List();
    }
}

public class MartialArt {
    public int Id { get; set; }
    public string Name { get; set; }
    // *snip*
    public virtual ICollection UserProfiles { get; set; }

    public MartialArt() {
        UserProfiles = new List();
    }
}