Search and remove Duplicates in a List
<p>In this post <a href="http://stackoverflow.com/questions/3450274/search-directory-for-files-that-start-with-access-and-then-search-that-file">Other Post</a> I used the programmers suggestion of <code>List&lt;KeyValuePair&lt;string, string&gt;&gt; IdentityLines = new List&lt;KeyValuePair&lt;string, string&gt;&gt;();</code>  to collect multiple string values within certain files of a directory.  I now want to remove the duplicate values from that list.  Any idea how I can do that in C#?  Thanks</p>
