using System;

using System.Threading;

using System.Threading.Tasks;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public class Member

    {

        public string m_FirstName;

        public string m_LastName;

        public override string ToString()

        {

            return m_FirstName + " " + m_LastName;

        }

    }

    private static List<Member> members = new List<Member>

    {

        new Member() {m_FirstName = "Chiristopher", m_LastName="Harrison"},

        new Member() {m_FirstName = "Jeremy", m_LastName =  "Foster"},

        new Member() {m_FirstName = "Stacey", m_LastName = "Mulcahy"}

    };

    public static void Main()

    {

        var result = (from m in members

                     where m.m_LastName.Length > 6

                     select m); //.ToList();

​

​

        Console.WriteLine("** First Execution **");

​

        foreach(var member in result)

        {

​

            Console.WriteLine(member);

        }

​

        members.Add(new Member() { m_FirstName = "Rian", m_LastName = "ThyTuhfadsl" });

​

        Console.WriteLine("** Second Execution **");

​

        foreach (var member in result)

        {

            Console.WriteLine(member);

        }

    }

}