partial void DeleteHD_Contact(HD_Contact instance);
partial void UpdateHD_Contact(HD_Contact instance);
private void detach_HD_Contact(HD_Contact entity) { this.SendPropertyChanging(); entity.HD_Dept = null; }
partial void InsertHD_Contact(HD_Contact instance);
private void attach_HD_Contact(HD_Contact entity) { this.SendPropertyChanging(); entity.HD_Dept = this; }