Entity Framework Mapping relationship with Entity Framework Code First: One-to-many and Many-to-many Many-to-many
Example
Let's move on to the other scenario, where every person can have multiple cars and every car can have multiple owners (but again, the relationship is bidirectional). This is a many-to-many relationship. The easiest way is to let EF do it's magic using conventions.
Just change the model like this:
public class Person
{
public int PersonId { get; set; }
public string Name { get; set; }
public virtual ICollection<Car> Cars { get; set; }
}
public class Car
{
public int CarId { get; set; }
public string LicensePlate { get; set; }
public virtual ICollection<Person> Owners { get; set; }
}
And the schema:
Almost perfect. As you can see, EF recognized the need for a join table, where you can keep track of person-car pairings.
