title: Make list immutable
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/4680035/immutable-list-in-c">Immutable List in C#</a>  </p>
  </blockquote>
  
  
  
  <p>Is it possible to make a list immutable</p>