C# List sorting usage and comparison

The following introduces the usage and comparison of sorts of various Lists

First, we create a People entity with attributes of name, age, and sex. The fields we want to sort are age age

Create a new entity class

 public class People
  {
    public string name { get; set; }
    public int age { get; set; }
    public string sex { get; set; }
  }

Create new list data

  List<People> peoples = new List<People>()
      {
        new People() {age = 11, name="alun", sex = "male"},
        new People() {age=25, name = "Chen Jingtao", sex = "male"},
        new People() {age=9, name = "Hui'an", sex = "male"},
        new People() {age = 45, name = "Small Ticket", sex = "female"},
        new People() {age=3, name = "Xiaoou", sex = "female"},
        new People() {age=70, name = "Wangmo", sex = "male"}
      };

1. The first sorting method, using IComparer

 public class PeopleAgeComparer : IComparer<People>
  {
    public int Compare(People p1, People p2)
    {
      return ();
    }
  }

(new PeopleAgeComparer());

You can see that the first method is troublesome to compare prices. You need to create a new class to do it.

2. The second sorting method, using delegate to sort

(delegate (People p1, People p2) { return (); });

It is very convenient to see the delegation method, so there is no need to create a new class as troublesome.

3. The second sorting method, using Lambda expressions to sort

( (a, b) => () );

There are three ways to visually sort. I personally think that Lambda expressions are more convenient to use.

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