using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Person[] people = {

            new Person(){ FirstName="Steve", LastName="Jobs"},

            new Person(){ FirstName="Bill", LastName="Gates"},

            new Person(){ FirstName="Steve", LastName="Jobs"},

            new Person(){ FirstName="Lary", LastName="Page"}

        };

        var dist = people.Distinct().ToArray();

        Array.ForEach(dist, v => Console.WriteLine(v.FirstName + " " + v.LastName));

    }

}

​

class Person : IEquatable<Person>

{

    public int Id { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

​

    public bool Equals(Person other)

    {

        return FirstName.Equals(other.FirstName) && LastName.Equals(other.LastName);

    }

​

    public override int GetHashCode()

    {

        return Id.GetHashCode() ^ (FirstName == null ? 0 : FirstName.GetHashCode()) ^ (LastName == null ? 0 : LastName.GetHashCode());

    }

}