partial void DeletePerson(Person instance);
 partial void UpdatePerson(Person instance);
 public void UpdatePerson(Person person)
 {
     throw new NotImplementedException();
 }
 partial void InsertPerson(Person instance);
 public void InsertPerson(Person person)
 {
     context.Persons.InsertOnSubmit(person);
     context.SubmitChanges();
 }