How do I sort a list of structures with a specific struct element?

Question

How do I sort this structure correctly?

struct Person 
{
    public string Name;
    public int    Age;
}

List<Person> People = new List<Person>();

// Add several hundred records

// sort by age
People.Sort(Person.Age);

Answer 1

You can use lambda expressions as well as generics here:

  struct Person { 
    public string Name; 
    public int Age; 
  }

  // generic List<T> is much better than deprecated List
  List<Person> People = new List<Person>();
  ...
  People.Sort((x, y) => x.Age - y.Age);

Another popular solution is Linq, but it creates a new list and so could be not that efficient:

  People = People.OrderBy(x => x.Age).ToList();

Answer 2

You can use LINQ's OrderBy method:

var sortedPeople = People.OrderBy(x => x.Age)

Answer 3

var sortedPeople = People.OrderBy(p => p.Age)

Answer 4

List<Person> res = People.OderBy(x => x.Age).ToList();