Returns true if there is a 'next' panel, and false otherwise.
Returns true if it is possible to finish the sequence at this point (possibly
with defaults for the
Creates a panel containing the user interface for the dialog.
Enables/disables the buttons according to the current step. A good idea would be
to ask the panels t
Returns the panel for the specified step (steps are numbered from zero).
Displays the next step in the wizard sequence.
Handles a click on the "previous" button, by displaying the previous panel in