title: It says System.String[] when i tries to output the value
body: <p>When I try to output the appointment.Categories value it says: <strong>System.String[]</strong></p>
  <p>But it output fine all the other values to plain text.</p>
  <p>I have tried ToString(), but that did not seems to work.</p>
  <pre><code>myText.InnerHtml += &quot;subject::&quot; + appointment.Subject + &quot;\n&quot;;
  myText.InnerHtml += &quot;starttime::&quot; + appointment.StartTime + &quot;\n&quot;;
  myText.InnerHtml += &quot;endtime::&quot; + appointment.EndTime + &quot;\n&quot;;
  myText.InnerHtml += &quot;categori::&quot; + appointment.Categories + &quot;\n&quot;;
  </code></pre>
  <p>These are the values there are from Microsoft
  <a href="http://msdn.microsoft.com/en-us/library/dd635637(v=exchg.80)" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/dd635637(v=exchg.80)</a></p>
  <p>How can I output the System.String to plaintext?</p>