Hi Sven, I solved the problem related to PropertyResolver by this way: the model of my "Modal"-extension is now a "Model" (String) and not "CompoundPropertyModel".
My next problem is: the tree isn't expandable. I'll try to fix it before I post another question. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/why-is-DefaultNestedTree-component-treated-as-property-within-PropertyResolver-tp4678549p4678572.html Sent from the Users forum mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org