Implement IComparable to use List.Sort : List « Data Structure « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Structure
3. List

using System;
using System.Collections.Generic;

    public class Employee : IComparable<Employee>
    {
        private int empID;

        public Employee(int empID)
        {
            this.empID = empID;
        }

        public override string ToString()
        {
            return empID.ToString();
        }

        public bool Equals(Employee other) 
        {
            if (this.empID == other.empID)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        public int CompareTo(Employee rhs)
        {
            return this.empID.CompareTo(rhs.empID);
        }
    }
    public class Tester
    {
        static void Main()
        {
            List<Employee> empArray = new List<Employee>();
            List<Int32> intArray = new List<Int32>();

            for (int i = 0; i < 5; i++)
            {
                empArray.Add(new Employee(i));
                intArray.Add(i);
            }
            intArray.Sort();
            for (int i = 0; i < intArray.Count; i++)
            {
                Console.Write("{0} ", intArray[i].ToString());
            }
            empArray.Sort();
            for (int i = 0; i < empArray.Count; i++)
            {
                Console.Write("{0} ", empArray[i].ToString());
            }
        }
    }