title: Is this RS expression standard or a hack
body: <p>I'm using <code>Switch</code> and there doesn't seem to be an obvious <code>ELSE</code> section to the expression so I've ended up with the following but it feels a bit like a hack - is it?</p>
  
  <p>It works - in that it amends the string if it is either <code>foo</code> or <code>bar</code> but any other product string is left alone:</p>
  
  <pre><code>=Switch(Fields!Product.Value = "foo" , "foo (incl sad)", 
         Fields!Product.Value = "bar", "bar (incl sick)",
         Cdbl(1)=Cdbl(1), Fields!Product.Value)
  </code></pre>