title: How to convert an XmlDocument to an array<byte>?
body: <p>I constructed an <a href="http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx" rel="noreferrer">XmlDocument</a> and now I want to convert it to an array. How can this be done?</p>
  
  <p>Thanks,</p>