<p>I'm using C# on Framework 3.5.  I'm looking to quickly sort a Generic <code>List&lt;T&gt;</code>.  For the sake of this example, let's say I have a List of a <code>Person</code> type with a property of lastname.  How would I sort this List using a lambda expression?</p>

<pre><code>List&lt;Person&gt; people = PopulateList();
people.OrderBy(???? =&gt; ?????)
</code></pre>

```
```
people.OrderBy(person => person.lastname).ToList();
```
```