GWT/GXT: Repaint/Rerender Textfield after setValue with Event

Question

Hi all,

i have a problem. I add a widget (LayoutContainer implements EventHandler) with a FormPanel with serveral TextFields with empty values.

I have a working Event that should fill some values into some of that Textfields.

I tried the following:

@Override
 public void onClientSelected(ClientSelectedEvent event) {
   Map<String, Object> datamap = event.getDatamap();
   tfClientName.setValue(datamap.get("sta_name").toString());

 }

But the textfield doesnt show any value :-( What do i have to do? Is there a repaint or reload function missing in my coding?

Thanks for any tip Lars.