I'm having trouble understanding how to correctly configure a parent/child pair of business objects so that the child object gets the parent foreign key upon saving the dataset. I've got a web form with the business objects set up in a parent/child manner:

// Register business objects.
this.oPerson = (Person) this.RegisterBizObj(new Person());
this.oPersonName = (PersonName) this.RegisterBizObj(new PersonName());
this.oPerson.RegisterChildBizObj(this.oPersonName);

In the child object (oPersonName) I've also set the "ForeignParentKeyField" to the parent primary key field, "person_uid". Still, when I call SaveData() it does not migrate the parent key to the child record (which is done by "PopulateForeignParentKeyField()"). Have I mistunderstood how this works, or maybe I didn't do something correctly?

If anyone has an example, I'd very much like to see one.