[Gambas-user] Validate Event and CausesValidation

[Dani Santos]

Let's suposse a simple form with Ok and Cancel buttons.

I need to validate the contents of some textboxes before focus is lost
outside the control. I also need a Cancel Button so, if pressed, doesn't
cause validation in any control of the form. (Exactly the same behaviour
my old VB had).

I haven't had much sucess implementing in the LostFocus event. It would
be nicer if the validation would take place before the focus was lost.

I have not figured out how to do it: I could control the Tab KeyPress in
an event but the user always could use the mouse to go to the next
control.

Any idea?

Thanks in advance!

-- 
José Daniel Santos Delgado
Programador del IESO Quercus (Malpartida de Plasencia)
http://iesoquercus.juntaextremadura.net/dani/
Tfno: 927010850         Fax: 927010851