codeSample.cs

using System;
using System.Collections.Generic;
using System.Linq;

namespace CodeSamplesForArena.net
{
    class Program
    {
        static void Main(string[] args)
        {
            var selector = new Selector();
            var valueList = new List<Value>();
            for (int i = 0; i <= 100; i++)
                valueList.Add(new Value { name = "foo" + i, value = i });

            var evenList = valueList.Where(x => { return selector.Even(x.value); });
            OutputList(x => { Console.WriteLine(x); }, evenList);

            Console.ReadKey();
        }

        public static void OutputList(Action<int> action, IEnumerable<Value> valueList)
        {
            valueList.Each(x => action(x.value));
        }
    }


    public class Value
    {
        public int value { get; set; }
        public string name { get; set; }
    }

    public class Selector
    {
        public Func<int, bool> Even { get { return x => { return (x % 2 == 0); }; } }
    }

    public static class IEnumerableExtender
    {

        public static void Each<T>(this IEnumerable<T> source, Action<T> action)
        {
            foreach (var i in source)
                action(i);
        }
    }
}