Examples of using Apache Wicket for Java
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If you’d like to have your FeedbackPanel update with errors in the event of a problem with your form, just adding the FeedbackPanel won’t do you any good. Just as with any other AJAX-updating component in Wicket, you’ll need to add it to the AjaxRequestTarget, only difference is, you’ll have to do this while [...]
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When writing AJAX-specific code for Wicket, in order to make any updates to a component, it needs to be added to the AjaxTarget. If you’ve got a particularly large form, this can get tedious, so use an IVisitor instead!
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A long running process that you’d like to show some indicator of progress or similar, usually means an indicator of some kind. Here we use an IndicatingAjaxButton to show some progress near the clicked submit button, and we use an IAjaxCallDecorator to disable the submit button so we don’t get multiple clicks
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If you have an AJAX button in your form, a nice way of adding javascript is to use an IAjaxCallDecorator
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