using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<Person> lijstje = new List<Person>();

        List<Person> gefilterd = new List<Person>();

        gefilterd = lijstje.Where(p => p.Lastname == "Smulders").ToList();

    }

}

​

​

public class Person

{

    public string Lastname {get; set;}

}

​

​