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There can be defined conditions, for which a change to the next = panel in the installation wizard is allowed.
This can be achieved by a nested definition into the panel definition od= the installer descriptor:
There can be used built-in or user-defined data validators.
There can be any number of validators nested to a <panel> definition. All of them must validate succes= sfully (or their condition must evaluate false) to allow a final success an= d thus a panel change from the according panel.
<validator> tag takes the following attributes:
Fully qualified classname of an Validator imp= lementation.
This can be a built-in validator or one from additional = libraries in the <jar> tag.= td>
||Condition for applying this validator. If this c= ondition evaluates false, the according validator is ignored||String||no|