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;
}