title: C# Selenium how can I implement click on button without id
body: <p>C# Selenium how can I implement click on button without id</p>
  
  <p>Here is the html:</p>
  
  <pre><code>&lt;div class="fe-margin"&gt; 
    &lt;button class="btn btn-default" data-bind="click: $root.addParameter, enable: $root.selectedParameter() == null" type="button"/&gt;
    Add parameter button
  &lt;/div&gt;
  </code></pre>