Case insensitive comparision

Question

How to implement case insensitive comparison?

List<Person> persons = new List<Person>();
persons.Add(new Person("P005", "Janson"));
persons.Add(new Person("P002", "Arnold"));
persons.Add(new Person("P007", "Kazhal"));
persons.Sort((p1, p2) => p1.Name.CompareTo(p2.Name));

Answer 1

persons.Sort((p1, p2) => string.Compare(p1.Name, p2.Name, true));