Form Validation

[Lorenzo Simionato]

Hi,
I'm new to Click and i can not understand how to validate a form properly.
I except the code of my listener method for the submit to be something like 
this:

public boolean onSubmit() {
   if (form.isValid()) {
      // All ok, process data
   }
   return true;
}
But isValid returns true even if validation was bypassed, by setting the hidden 
field
bypass_validation to true.
So the question is how can i be sure that the form is valid before processing 
the data?

Thanks.

--
Lorenzo Simionato