using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    class Person

    {

        public string Name

        {

            get;

            set;

        }

​

        public Person(string name)

        {

            Name = name;

        }

    }

​

    public static void Main()

    {

        var list = new List<Person>()

        {new Person("Bob"), new Person("Ann"), new Person("Cat")};

        foreach (var item in YieldNames(list))

        {

            Console.WriteLine(item);

        }

    }

​

    static IEnumerable<string> YieldNames(List<Person> personList)

    {

        foreach (var person in personList)

        {

            yield return person.Name;

        }

    }

}