by a.maioli » 20 January 2012, 5:12
Come elemento di riflessione, riporto un testo dalle linee guida di user interface di Apple, che sconsiglia l'uso di message box con più di due pulsanti:
Generally, use a two-button alert. A two-button alert is often the most useful, because it is easiest for people to choose between two alternatives. It is rarely a good idea to display an alert with a single button because such an alert is merely informative; it does not give people any control over the situation. An alert that contains three or more buttons is significantly more complex than a two-button alert and should be avoided if possible. In fact, if you find that you need to offer people more than two choices, you should consider using an action sheet instead (to learn how to use an action sheet, see “Action Sheet”).