LINQ's Distinct() on a particular property

Question

I am playing with LINQ to learn about it, but I can\'t figure out how to use Distinct when I do not have a simple list (a simple list of integers is pretty easy

Answer 1

I've written an article that explains how to extend the Distinct function so that you can do as follows:

var people = new List();

people.Add(new Person(1, "a", "b"));
people.Add(new Person(2, "c", "d"));
people.Add(new Person(1, "a", "b"));

foreach (var person in people.Distinct(p => p.ID))
    // Do stuff with unique list here.

Here's the article (now in the Web Archive): Extending LINQ - Specifying a Property in the Distinct Function