Remove duplicate values
<p>I have a class ClientState</p>

<pre><code>Class ClientState
{
Public int ID{get;set;}
public string State{get;set;}
}
</code></pre>

<p><code>List&lt;ClientState&gt; listClientState</code> which contain all states of USA, Now may problem is listClientState contain some objects which have duplicates states.
How can i filter listClientState to remove duplicate record </p>
