Sorry for jumping in Fabio.


2. I can use this sequence for escalade a error
when it is trapped into a object Error event

Procedure Error(nError, cMethod, nLine)
    ? "Class error catching",ERROR(),MESSAGE()
    TRY
       THROW	&& this escalade the error to the first try/endtry level
    ENDTRY
ENDPROC

Though this will throw and exception out of the error method it really does't escalate the original error (IMO it should). Your code will throw a "user thrown error" to a higher handler. So in a sense it's not really escalating the exception.