entity framework - Code First and many-to-many relations -

hopefully can show me how implement many-to-may relation...

i have 2 classes, car , owner. each car can owned many owners. , each owner can own many cars. note want navigationproperty car owners.

public partial class car {     public int carid { get; set; }     public string name { get; set; }     public icollection<owner> owners { get; set; } }  public partial class owner {     public int ownerid { get; set; }     public string  name { get; set; } } 

in dbinitializer seed b this.

        owner owner1 = new owner() { ownerid = 10, name = "erik" };         context.owners.add(owner1);         car b1 = new car() { carid = 1, name = "volvo", owners = new list<owner>(new owner[] { owner1 }) };         car b2 = new car() { carid = 2, name = "saab", owners = new list<owner>(new owner[] { owner1 }) };         context.cars.add(b1);         context.cars.add(b2);         context.savechanges(); 

the result owner1 owns b2. why? , how can changed many many relation?

thanks!

in context add this:

protected override void onmodelcreating(dbmodelbuilder modelbuilder) {     base.onmodelcreating(modelbuilder);     modelbuilder.entity<car>().hasmany(c => c.owners).withmany(); } 

i tells ef there many-to-many association between car , owner without navigation property in owner.