      *  <code>labelField</code> property, returns the contents of the property.</li>
      *    <li>If the item has a label property, returns its value.</li>
      *  </ol>
+     * 
+     *  @param item The object that contains the value to convert to a label. If the item is null, this method returns the empty string.
      */
     public function itemToLabel(item:Object):String
     {

        if (value >= 0)
            selectionChanged = true;
            
		implicitSelectedIndex = false;
        invalidateDisplayList();

        // value committed event needs the text to be set

     *  @see mx.styles.StyleProxy
     *  @review
     */
    protected function get dropDownStyleFilters():Object
    {
        return null;
    }

    //----------------------------------
