title: How to determine if XElement.Elements() contains a node with a specific name?
body: <p>For example for the following XML</p>
  
  <pre><code> &lt;Order&gt;
    &lt;Phone&gt;1254&lt;/Phone&gt;
    &lt;City&gt;City1&lt;/City&gt;
    &lt;State&gt;State&lt;/State&gt;
   &lt;/Order&gt;
  </code></pre>
  
  <p>I might want to find out whether the XElement contains "City" Node or not. </p>