partial void DeleteStudent_Phone(Student_Phone instance);
partial void UpdateStudent_Phone(Student_Phone instance);
private void detach_Student_Phones(Student_Phone entity) { this.SendPropertyChanging(); entity.Student = null; }
partial void InsertStudent_Phone(Student_Phone instance);
private void attach_Student_Phones(Student_Phone entity) { this.SendPropertyChanging(); entity.Student = this; }