Il 28/06/2014 01:18, Juha Manninen ha scritto:
On Sat, Jun 28, 2014 at 1:51 AM, Giuliano Colla
<giuliano.co...@fastwebnet.it> wrote:
(I can't anchor the second Button to the first, because if the first becomes
invisible, the second is moved from his position, which is not acceptable).
True, hiding the control ruins the plan of using anchors here.
A more standard way would be to disable it instead of hiding.
It's true only if you're dealing with sophisticated users. A plain user
will fail to grasp the difference between a grayed button and another,
and you'll get a phone call in the middle of the night from Hong Kong or
from Santiago, claiming that the touch screen is broken, because
touching a button doesn't provide any action! (Usually those things
occur in places where the time zone makes them work when you're asleep :-( )
If you notice, all visual applications meant for plain users (cash
dispensers, buying machines, self check-in, info terminals, restaurant
and hotel management, etc.) show only active controls, and hide all the
rest.
Giuliano
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