[Trinidad] UIXForm vs. UIForm

[Renzo Tomaselli]

Hi, I met some troubles while enclosing rich:dropDownMenu components 
inside a tr:form. The involved renderer complains about not being able 
to find an enclosing form.
That component expects to be enclosed by a standard UIForm somewhere 
high in the component tree, while Trinidad tr:form places a UIXForm 
class there (actually a CoreForm class).
Tr:form was mandatory while using Trinidad because of reasons I can't 
remember right now.
Just trying to understand what is standard and what is not in this puzzle.
Could anybody enlight this topic please ?
Thanks -- Renzo