In article <e97904f9d7b3024ebaaa45446f039aa107fd4...@mail.iiu.ie>,
"Lobo, Lionel" <lionel.l...@daon.com> writes:
> I've seen solutions that employ a checkbox to confirm the input, which
> then sets a property to conditionally enable the Next button, but would
> ideally like to do the validation as a user is typing.
What I've done is to handle validation when they click Next. If the
input is invalid, then a modal error dialog is shown and the
transition to the next dialog is aborted. If the text is valid, then
the transition to the next dialog is taken.
All that matters is that you not transition out of a dialog with
invalid input. It really isn't going to make much difference to the
user if it happens as soon as they type the first bad character or
when they click next.
Remember, we're talking about an installer here that people are going
to run once to install your product. Its not an application they're
going to be sitting in every single day, hanging on its responses to
every single keystroke. Keep your UI simple and your install will be
simple and you will have fewer problems and your customers will like
you better.
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