Implementing IComparable and sort by Array.Sort : Array Sort « Data Structure « C# / CSharp Tutorial

using System;

public class Employee: IComparable{
    public Employee(string name, int id)
    { = name; = id;
    int IComparable.CompareTo(object obj)
        Employee emp2 = (Employee) obj;
        if ( >
        if ( <
    public override string ToString()
        return(String.Format("{0}:{1}", name, id));
    string name;
    int id;

class MainClass
    public static void Main()
        Employee[] arr = new Employee[4];
        arr[0] = new Employee("A", 1);
        arr[1] = new Employee("B", 2);
        arr[2] = new Employee("C", 4);
        arr[3] = new Employee("D", 3);
        foreach (Employee emp in arr)
            Console.WriteLine("Employee: {0}", emp);
        Console.WriteLine("Find employee id 2 in the list");
        Employee employeeToFind = new Employee(null, 2);
        int index = Array.BinarySearch(arr, employeeToFind);
        if (index != -1)
            Console.WriteLine("Found: {0}", arr[index]);    
Employee: A:1
Employee: B:2
Employee: D:3
Employee: C:4
Find employee id 2 in the list
Found: B:2

11.18.Array Sort
11.18.1.Sort an array
11.18.2.Sort an array and search for a value
11.18.3.Display the contents of the sorted array
11.18.4.Use System.Array.Sort() to sort an int array
11.18.5.Implementing IComparable and sort by Array.Sort
11.18.6.Use Array.Sort to sort object array
11.18.7.Use the Sort() method to sort the elements in an int array