title: How to manually trigger validation with jQuery validate?
body: <p>I want to manually trigger validation including showing error messages with <a href="http://docs.jquery.com/Plugins/Validation" rel="noreferrer">jQuery Validate</a>.</p>
  
  <p>The scenario I am trying to accomplish is a form like this:</p>
  
  <pre><code>&lt;form&gt;
   &lt;input id=i1&gt; &lt;button id=b1&gt;
   &lt;input id=i2&gt; &lt;button id=b2&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>When clicking <code>b1</code>, only <code>i1</code> should be validated. hen clicking <code>b2</code>, only <code>i2</code> should be validated. However all fields must be posted. How can I do this? I thought about handling the click event for <code>b1/b2</code> and manually validating a part of the form.</p>