Can someone give me a point, how to make combobox in wicket. It should be editable field with options loading by ajax. Thank you.
this example should be right for what you need:
http://examples8x.wicket.apache.org/ajax/autocomplete
In addition, you can take a look at this WicketStuff project that integrates Select2 framework with Wicket:
https://github.com/wicketstuff/core/tree/master/select2-parent