[Qt-interest] QWizard with server validation

[Brilliantov Kirill Vladimirovich]

>
> 1. How to disablle buttons? And enable when I will be on next page.

button->setDisable(true)

> 3. How to validate email on client? If the user enters an invalid address I
> do not need to send data to the server.

You can use QRegExp and QValidator