title: DataView.Sort - more than just asc/desc (need custom sort)
body: <p>I've got a report being built from a dataset. The dataset uses the Sort property to order the data. I know that I can create a sort expression like this:</p>
  
  <p>"field desc, field2 asc"</p>
  
  <p>But what I need now is a way to do a custom sort. In SQL, I can perform a custom sort by doing something like this:</p>
  
  <pre><code>order by 
      case when field = 'Some Value' then 0 end
      case when field = 'Another Value' then 1 end
  </code></pre>
  
  <p>To basically re-define my sort (i.e, Some Value comes before Another Value).</p>
  
  <p>Is it possible to do something similar as a sort expression against a DataView?</p>