c# -- 객체 속성을 기준으로 Generic List 정렬하기

c# -- 객체 속성을 기준으로 Generic List 정렬하기

참고 : https://stackoverflow.com/questions/3309188/how-to-sort-a-listt-by-a-property-in-the-object

< 실행 결과 >

< 소스코드 >

--

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Threading.Tasks;
	namespace List_sort
	{
	class Program
	{
	static List<Student> studentList = new List<Student>();
	static void Main(string[] args)
	{
	studentList.Add(new Student("Tom", 17, 33.2, false));
	studentList.Add(new Student("Sara", 19, 53.4, true));
	studentList.Add(new Student("홍길동", 15, 130.2, false));
	studentList.Add(new Student("이순신", 16, 43.2, true));
	studentList.Add(new Student("Ace", 15, 23.2, false));
	Console.WriteLine(Environment.NewLine + "-------------- 원본 데이터 --------------------");
	foreach (var student in studentList)
	{
	Console.WriteLine(student);
	}
	Console.WriteLine(Environment.NewLine + "-------------- Age 순 오름차순 정렬하기 --------------------");
	List<Student> SortedList = studentList.OrderBy(x => x.Age).ToList();
	foreach (var student in SortedList)
	{
	Console.WriteLine(student);
	}
	Console.WriteLine(Environment.NewLine + "------------- Name 순 내림차순 정렬하기 --------------------");
	SortedList = studentList.OrderByDescending(x => x.Name).ToList();
	foreach (var student in SortedList)
	{
	Console.WriteLine(student);
	}
	Console.WriteLine(Environment.NewLine + "----------- Weight 오름차순, 반환값없는 자체 정렬하기 -----------");
	studentList.Sort((x1, x2) => x1.Weight.CompareTo(x2.Weight));
	foreach (var student in studentList)
	{
	Console.WriteLine(student);
	}
	Console.WriteLine(Environment.NewLine + "----------- Weight 내림차순, 반환값없는 자체 정렬하기 -----");
	studentList.Sort((x1, x2) => x2.Weight.CompareTo(x1.Weight));
	foreach (var student in studentList)
	{
	Console.WriteLine(student);
	}
	Console.WriteLine(Environment.NewLine + "----------- Age순 이후, Weight 순으로 정렬하기 -----");
	SortedList = studentList.OrderBy(x => x.Age).ThenBy(x => x.Weight).ToList();
	foreach (var student in SortedList)
	{
	Console.WriteLine(student);
	}
	Console.Read();
	}
	}
	class Student
	{
	public string Name { get; set; }
	public int Age { get; set; }
	public double Weight { get; set; }
	public bool Glass { get; set; } = false; // 안경끼면, true
	public Student(string name, int age, double weight, bool glass)
	{
	this.Name = name;
	this.Age = age;
	this.Weight = weight;
	this.Glass = glass;
	}
	public override string ToString()
	{
	return $"-- Name={Name},\t Age={Age}, 몸무게={Weight}, \t 안경착용={Glass}--";
	}
	}
	}

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