Yes. The markupProvider id that's passed into the fragment constructor points
to the DefaultDataTable cell id - I'm using a class extending PropertyColumn and
implementing populateItem(Item item, String componentId, IModel model). I then
call item.add(new Fragment(componentId, fragmentId) where fragmentId is the
wicket:id from the wicket:fragment that I want to use.
so /no/ you are not using markupprovider param when defining the fragment
try new Fragment(componentId, fragmentId, this)
-Igor
