Place value from Forms building in the collection Render Settings.

Question

Hello,
I build a XML form with Forms builder. In one field you can select a <b>project-date</b>. Is it possible to export the  the value of this field in a LayoutSet? 
I used the standay LayoutSet <b>ConsumerExplorer</b> and would like to place the field <b>project-date</b> in this LayoutSet.
I think you have to do this in the <i>Collection Renderer Settings -> Collection List Renderer Settings -> Displayed Properties.</i>
The extra code that a placed in the Displayed Properties is: rnd:app_date(contentLink.)But still it is not working.
Can someone help me with this or send me a link.
Greetings,
GM
Message was edited by: Gema

Answer 1

Yes thanks Francois, I know perfectly well how dispatchCustomEvent() and WHEN-CUSTOM-ITEM-EVENT works, but please read the full context to understand what it is, that I actually ask about. Maybe a modification of your code (which is not possible in reality) can better demonstrate what I try to do.
  private void dispatchErrors(String message)
    log(message);
    try{
      CustomEvent ce = new CustomEvent(m_handler, THE_TAG_CODE);
      m_handler.setProperty(THE_TAG_CODE,message);
      returnValue = dispatchCustomEvent(ce);
      System.out.println(returnValue);
      catch (Exception e)
        e.printStackTrace();
  }In Forms
DECLARE
   eventName varchar2(30) := :system.custom_item_event;
   eventValues ParamList;
   eventValueType number;
   tempString varchar2(100);
   returnValue varchar2(200);  
BEGIN
   IF (eventName='THE_TAG_CODE') THEN
      eventValues := get_parameter_list(:system.custom_item_event_parameters);
      get_parameter_attr(eventValues,'THE_TAG_CODE',eventValueType, tempString);
      select 'Returned from Forms ' || tempString
          into returnValue from dual;
      return_value_to_java(returnValue);
   END IF;
END;Result: the Java console prints "Returned from Forms" + the parameter sent from Java originally.
Does that make it more clear?