C# Online Compiler | .NET Fiddle

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 studentsInAscOrder = studentList.OrderBy(s => s.StudentName);
		
		var studentsInDescOrder = studentList.OrderByDescending(s => s.StudentName);
		
		
		Console.WriteLine("Ascending Order:");
		
		foreach (var std in studentsInAscOrder)
        	Console.WriteLine(std.StudentName);
		
		Console.WriteLine("Descending Order:");
		
		foreach (var std in studentsInDescOrder)
        	Console.WriteLine(std.StudentName);
		
	}
		
}

public class Student{

	public int StudentID { get; set; }
	public string StudentName { get; set; }
	public int Age { get; set; }
	
}

 
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 studentsInAscOrder = studentList.OrderBy(s => s.StudentName);
        
        var studentsInDescOrder = studentList.OrderByDescending(s => s.StudentName);
        
        
        Console.WriteLine("Ascending Order:");

a=10  b=20
sum=30    pr=200
a=10  b=20 c=30
sum=60    pr=6000