title: Pass querystring parameter to second page
body: <p>I have web page which is passing a querystring parameter to page 2:</p>
  
  <pre><code>&lt;a href="Page2.aspx?WONumber=12345"&gt;
  </code></pre>
  
  <p>On page 2 I want to have an href which passes the same parameter value to page 3.  I tried:</p>
  
  <pre><code>&lt;a href="Page3.aspx?WONumber=" + request.querystring("WONumber") &gt;
  </code></pre>
  
  <p>but that gives me a VS2008 error "attribute 'request.querystring' is not a valid attribute of element 'a'".  What should I be doing instead?</p>