public void Detach(ISchoolPsychologist ISchoolPsychologist) { if (this.psychologists != null) { this.psychologists.Remove(ISchoolPsychologist); } }
public void Attach(ISchoolPsychologist psychologist) { if (this.psychologists == null) { this.psychologists = new List<ISchoolPsychologist>(); } this.psychologists.Add(psychologist); }