title: How to get Sencha file upload field to accept multiple files
body: <p>I have Sencha Ext JS application where I use <code>File</code> form field (<code>Ext.form.field.File</code>) to upload files. It's working fine, but I want users to be able to select multiple files for upload at once, like at Dropbox.com, for example. I have another, non-Sencha site (in which I had direct control over HTML) where I solved this problem by using <code>multiple</code> attribute of the INPUT element: </p>
  
  <pre><code>  &lt;input type="file" name="files" multiple&gt;
  </code></pre>
  
  <p>Sencha, however, doesn't support multiple files in file upload field natively, at least as of current version (4.1). Perhaps it's possible to alter HTML output emitted by Sencha for <code>&lt;input&gt;</code> element, but I am not sure how.</p>