title: get xml attribute using linq
body: <p>suppose i have xml similar to the below</p>
  
  <pre><code>&lt;?xml version=”1.0” encoding=”UTF-8”?&gt; 
  &lt;validate status=”yes” last_updated=”2009-07-05T11:31:12”&gt; 
   etc...etc
  &lt;/validate&gt; 
  </code></pre>
  
  <p>in c# how can i get the value of status in the validate element?</p>
  
  <p>there will only be one validate element. 
  how can i do this with linq?...or if theres a simpler way maybe</p>