public void Remove_Person(Person person) { People.Remove(person); }
public void Add_Person(Person person) { People.Add(person); }
public void Update_Existing_Person(Person person, string first_name, string last_name) { person.First_Name = first_name; person.Last_Name = last_name; }
public void Update_Existing_Wish_List(Wish_List wish_list, Person owner, List<Wish_List_Item> wish_list_items) { wish_list.Owner = owner; wish_list.Wish_List_Items = wish_list_items; }
public void Update_Existing_Event(Event ev, Anniversary_Types anniversary_type, Person person, DateTime date) { ev.Anniversary_Type = anniversary_type; ev.Person = person; ev.Date = date; }