using System;

using System.Linq;

using System.Collections.Generic;

​

public class AlgoBueno {

    public string Campo { get; set; }

}

​

public class Program

{

    public static void Main()

    {

        var s = new List<string> { "hola", "hello33", "hillos" };

        var T = from e in s orderby e.Length select e;

        var T2 = s.OrderBy(x => x.Length);

        Console.WriteLine("Con query syntax: ");

        foreach (var k in T) 

            Console.WriteLine(k);

        Console.WriteLine("\nCon method syntax:");

        foreach (var k in T2)

            Console.WriteLine(k);

        Console.WriteLine("\nAhora con una clase: ");

        var lClases = new List<AlgoBueno>() {

            new AlgoBueno { Campo = "hola12" },

            new AlgoBueno { Campo = "hola4312" },

            new AlgoBueno { Campo = "hola" },

            new AlgoBueno { Campo = "hola2" }

        };

        var elementos = lClases.Select(x => new { Campo = x.Campo }).OrderBy(x => x.Campo.Length);

        foreach (var l in elementos) 

            Console.WriteLine(l.Campo);

    }

}