There is an example.
http://www.dooriented.com/blog/2008/04/23/wicket-ajax-like-file-upload-on-a-modal-window/
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Sent from the Wicket - User
the problem is that you cannot upload a file by means of ajax. you'll have to
use something like a hidden iframe that takes care of the file upload. as
far as i know this topic has already been discussed on the mailing list, i
also think in the wicketstuff (or wicket extensions) project there's
