[T5] Updating Zone with Action Link using Select field value as Context

[Dave Greggory]

When the user clicks on the action link, I want to get the currently selected 
value from select field and use that as the context when calling the event.

  @Component
  private Zone myZone;

  @Component(parameters = {"context=selectedItem", "zone=myZone"})
  private ActionLink showMyStuffLink;

  @Component
  private Form form;

  @Component (parameters = {"blankLabel=--Select--",
          "blankOption=ALWAYS",
          "model=mySelectModel",
          "encoder=myValueEncoder",
          "value=selectedItem"})
  private Select mySelectField;

  @Property
  private Item selectedItem;

  @OnEvent(value = "action", component = "showMyStuffLink")
  Object showStuff(Item selectedItem)
  {
    someOtherComponent.setSelectedItem(selectedItem);
    return someOtherComponent;
  }

But Tapestry does not use the showStuff(Item selectedItem) method and it throws 
an Exception in AjaxComponentEventRequestHandler saying it cannot find my event 
handler. Debugging AjaxComponentEventRequestHandler shows that EventContext is 
an empty one. If I make the method take no parameters, then showStuff() gets 
called, but I have no access to the mySelectField's selected value 
(selectedItem property is null). 

How do I grab the selected field value and pass it on to my event handler?

Dave


      


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