title: Setting HttpContext.Current.Request.Url.Host
body: <p>I need to replace the host part of the Uri</p>
  
  <p><code>HttpContext.Current.Request.Url.Host = "newDomain";</code></p>
  
  <p>you can't set host.  Is there a quick and easy way to do this to a Uri for reusing it to redirect somewhere else?</p>