title: How to click a button in webbrowser document without ID
body: <p>I have a button, but I can't find the code to click it. </p>
  
  <p>Maybe it's a Java button or something, but this is the information about it:</p>
  
  <pre><code>&lt;div class="contractLink"&gt;
      &lt;button class="build" onclick="window.location.href = 'dorf1.php?a=17&amp;c=ad65e8';  return  false;" value="الارتقاء الى مستوى 2" type="button"&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Please tell me how can I do this. I have tried:</p>
  
  <pre><code>HtmlElement ele = webBrowser1.Document.GetElementById("name");
  if (ele != null)
  </code></pre>
  
  <p>But there is no id.</p>