title: Can not sort month-year column?
body: <p>I have a date column. I created Month-Year column in my report using the following expression, but I am not able to sort month-year wise.</p>
  
  <pre><code>=MonthName(Month(Fields!new_sitevisiteddateutc.Value))&amp; "-"&amp; Year(Fields!new_sitevisiteddateutc.Value)
  </code></pre>
  
  <p>I would like to have <code>MAY-2009 JUNE-2009 JANUARY-2011 MARCH-2011</code>, however I am getting <code>JUNE-2009  MARCH-2011  MAY-2009  JANUARY-2011</code>.</p>
  
  <p>Can someone help me with this?</p>