@solomon, @Steve, @chris. Thanks guys for the help. :-)

 

@chris, that's correct i.e I'm evaluating strings. And I can get it to work fine on true but not false because the string inputs vary i.e not a constant. Also, if I use a null on the input, the false is still not triggered. Strings can only use these operators == and !=  so I thought of trying to use a bool value somewhere to create the trigger, but no success.

 

Basically, I've created  a web app user interface which carried some intelligence i.e does not use any validation rules or code. With the else code, I've got various other things happening like e.g. a progress and status bar, a "file stream " diagnostic ( which am still to work on ), and disbaling features that block the interface after a few tries.