using System;

​

public class Program

{

    public static void Main()

    {

        Foo foo = new Foo();

        Console.WriteLine(foo[1]);

    }

}

​

class Foo

{

    [System.Runtime.CompilerServices.IndexerName("TheItem")] 

    public int this[int i]

    {

        get

        {

            return i;

        }

​

        set

        {

        }

    }

}