using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        // Student collection

        IList<Student> studentList = new List<Student>() { 

                new Student() { StudentID = 1, StudentName = "John", Age = 18 } ,

                new Student() { StudentID = 2, StudentName = "Steve",  Age = 15 } ,

                new Student() { StudentID = 3, StudentName = "Bill",  Age = 25 } ,

                new Student() { StudentID = 4, StudentName = "Ram" , Age = 20 } ,

                new Student() { StudentID = 5, StudentName = "Ron" , Age = 19 } 

            };

        var thenByResult = studentList.OrderBy(s => s.StudentName).ThenBy(s => s.Age);

​

        var thenByDescResult = studentList.OrderBy(s => s.StudentName).ThenByDescending(s => s.Age);

​

        Console.WriteLine("ThenBy:");

        foreach (var std in thenByResult)

            Console.WriteLine("Name: {0}, Age:{1}", std.StudentName, std.Age);

        Console.WriteLine("ThenByDescending:");

        foreach (var std in thenByDescResult)

            Console.WriteLine("Name: {0}, Age:{1}", std.StudentName, std.Age);

    }

}

​

public class Student{

​

    public int StudentID { get; set; }

    public string StudentName { get; set; }

    public int Age { get; set; }

}