title: Convert textfield to uppercase
body: <p>I am trying to force a textfield to convert whatever you enter to uppercase. This is the line that I have been using </p>
  
  <pre><code>style: 'text-transform: uppercase'
  </code></pre>
  
  <p>It is working on 90% of my textfield however for one specific textfield, it will not work. It converts whatever you type into a textfield, but then when you tab out of the textfield it reverts back to lowercase for some reason.</p>
  
  <p>here is the full code for the textfield:</p>
  
  <pre><code>    {
      id: 'conditionValue',
      header: "Condition Value",
      dataIndex: 'condValue',
      width: 100,
      editor: newExt.form.TextField({
          style: 'text-transform: uppercase'
      }
  })
  }
  </code></pre>