title: Exchange 2010 TotalItemSize.Value.ToBytes() always empty
body: <p>I'm trying to create simple reports on Exchange 2010 mailbox size.</p>
  
  <p>While this works:</p>
  
  <pre><code>Get-MailboxStatistics -server &lt;serverfqdn&gt; |ft  displayname, TotalItemSize
  </code></pre>
  
  <p>this doesn't (second column stays empty):</p>
  
  <pre><code>Get-MailboxStatistics -server &lt;serverfqdn&gt; |ft  displayname, {$_.TotalItemSize.Value.ToBytes()}
  </code></pre>
  
  <p>The problem is that I need the size as an integer, so the first line of code doesn't serve my purpose.
  According to several websites the second line of code <em>should</em> work but unfortunately doesn't on my machine.</p>
  
  <p>I know I could parse the value after using the first line but that would be unnecessarily inefficient, wouldn't it? :-)</p>
  
  <p>Hope anyone can help.</p>
  
  <p>Regards,
  Kevin</p>