title: Flex - how to detect event when a DateField is edited
body: <p>How can I detect when a user changes a date field - specifically when they TYPE the date as I have set it to editable:</p>
  
  <pre><code>&lt;mx:FormItem label="Assigned" x="220" y="59"&gt;
          &lt;mx:DateField formatString="YYYY-MM-DD" id="clinicianAssignedDateInput" editable="true" text="@{this._currentEditEncounter.clinicianAssignedDate}" toolTip="format: YYYY-MM-DD" change="clinicianAssignedDateInput_dataChangeHandler(event)"/&gt;
      &lt;/mx:FormItem&gt;
  </code></pre>
  
  <p>The change event seems to only throw when using the calendar pop-up.  It is not thrown when the user manually types in to the field.</p>
  
  <p>I also tried dataChange.</p>