using System;

using System.Collections.Generic;

using System.Linq;

public class Bob

{

    public int Age { get; set; }

}

​

public class Executor

{

    public int NumberOfProjections { get; set; }

    public void Execute()

    {

        var numberOfProjectionsForThisInvocation = 0;

        var list = new List<Bob>();

        list.Add(new Bob() { Age = 1 });

        list.Add(new Bob() { Age = 2 });

        var ages = list.Select(z =>{

            NumberOfProjections++;

            numberOfProjectionsForThisInvocation++;

            return z.Age;

        });

​

        Console.WriteLine(string.Join(",", ages));

        Console.WriteLine(NumberOfProjections);

        Console.WriteLine(numberOfProjectionsForThisInvocation);

    }

}

​

public class Program

{

    public static void Main()

    {

        var exec = new Executor();

        exec.Execute();

    }

    public static void Bob(DateTimeOffset h)

    {

        Console.WriteLine(h.ToString("o"));

    }

}