title: Parsing XML using XDocument
body: <p>Can I get some help parsing the "my_cool_id" from the following xml using XDocument?</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve"&gt;
    &lt;fields&gt;
      &lt;field name="field_name_1"&gt;
        &lt;value&gt;12345&lt;/value&gt;
      &lt;/field&gt;
      &lt;field name="my_cool_id"&gt;
        &lt;value&gt;12345&lt;/value&gt;
      &lt;/field&gt;
      &lt;field name="field_name_2"&gt;
        &lt;value&gt;12345&lt;/value&gt;
      &lt;/field&gt;
      &lt;field name="field_name_3"&gt;
        &lt;value&gt;12345&lt;/value&gt;
      &lt;/field&gt;
    &lt;/fields&gt;
  &lt;/xfdf&gt;
  </code></pre>