title: FlowDocument contents as text
body: <p>What is the best way to get back the XAML/XML value of a FlowDocument?</p>
  
  <p>I noticed there isn't a .Value, .Text, .Caption, .ToXml(), etc...  </p>
  
  <p><strong>UDPATE:</strong><br>
  I'd like to be able to get access to it initially to serialize to disk or database. Treat it as its own document format. Later translating it to other formats would be nice.<br>
  Also been wondering:<br>
  Any equivalent to a hyperlink (opens in new browser window) in a FlowDocument? Any workaround?</p>