title: How To Cast Ilist To ArrayList?
body: <p>Can I Cast <code>IList</code> into <code>ArrayList</code>?</p>
  
  <p>if yes what should I do?</p>
  
  <pre><code>IList alls = RetrieveCourseStudents(cf);
  ArrayList a = (ArrayList)alls;
  </code></pre>
  
  <p>Is that correct?</p>
  
  <p>is has error:</p>
  
  <blockquote>
    <p>Unable to cast object of type</p>
  </blockquote>