title: How to compare values in 2 lists
body: <p>I have a list as   <code>Users = new List&lt;string&gt;();</code></p>
  
  <p>I have another List, <code>List&lt;TestList&gt;()</code>;</p>
  
  <pre><code>UsersList = new List&lt;string&gt;();
  </code></pre>
  
  <p>I need to compare the values from Users with TestList.Name.  If the value in TestList.Name is present in Users, I must must not add it to UsersList, else, I must add it to UsersList.</p>
  
  <p>How can I do that using Linq?</p>