title: How to select the tag based on tag name and get its count
body: <p>Not able to select the node with the tag name.</p>
  <p>Smaple XML:</p>
  <pre><code>&lt;author-group id=&quot;a001&quot;&gt;
  &lt;author id=&quot;aa001&quot;&gt;
    &lt;given-name id=&quot;g001&quot;&gt;Name&lt;/given-name&gt;
    &lt;surname id=&quot;s001&quot;&gt;Name&lt;/surname&gt;
  &lt;/author&gt;
  &lt;author id=&quot;aa002&quot;&gt;
   &lt;given-name id=&quot;g002&quot;&gt;Name&lt;/given-name&gt;
   &lt;surname id=&quot;s002&quot;&gt;Name&lt;/surname&gt;
  &lt;/author&gt;
  &lt;author id=&quot;aa003&quot;&gt;
     &lt;given-name id=&quot;g003&quot;&gt;Name&lt;/given-name&gt;
     &lt;surname id=&quot;s003&quot;&gt;Name&lt;/surname&gt;
  &lt;/author&gt;
  &lt;/author-group&gt;
  </code></pre>
  <p>Code tried:</p>
  <pre><code>Dim xDom As New Xml.XmlDocument
  xDom .LoadXml(XMLStr)
  Dim Lst As XmlNodeList = xDom.SelectNodes(&quot;//author&quot;)
  Dim NodeCount as Integer =Lst.Count()
  </code></pre>
  <p>The count is coming as zero..</p>