protected void updateButtonState ( ) { getNavigationPanel ( ) . getBtnPrevious ( ) . setEnabled ( getStateMachine ( ) . getCurrentState ( ) . hasPrevious ( ) ) ; getNavigationPanel ( ) . getBtnNext ( ) . setEnabled ( getStateMachine ( ) . getCurrentState ( ) . hasNext ( ) ) ; }
Update the button states . Overwrite this method for activate or disable the navigation buttons .