Hmm... ok, does that mean, in forms I do not have to wrap my model(object) into a CompundPropertyModel, because DropDownList (or even all FormComponents?) automatically joins IComponentInheritedModel hierarchy?
So, as conclusion, by using a constuctor with an empty model (id, new Model(), List choices) a exclude my DropDownChoice from the hierarchy? Patrick Am 26.09.2013 09:47, schrieb Martin Grigorov: > Hi, > > This use case will work only when the DropDownChoice has a parent in the > hierarchy with org.apache.wicket.model.IComponentInheritedModel, > like org.apache.wicket.model.CompoundPropertyModel. > In this case the dropdown will use a slot from its parent's > IComponentInheritedModel. > > > On Thu, Sep 26, 2013 at 9:39 AM, Patrick Davids > <patrick.dav...@nuboit.de>wrote: > >> Hi all, >> >> since I'm working with Wicket I am a bit confused about the Constructors >> of DropDownChoice Class. >> >> DropDownChoice provides Constructors without any Model or ModelObject. >> e.g. (id, List choices) >> >> This is logical in an use-case, for instance, having just a page with a >> SelectBox and my first click is about to choose something. >> And I may do not have any "parent" model object of the page, so I did >> not bind my DropDownChoice by PropertyModel expressions. >> >> So, in such cases... >> >> Why Wicket always complaints about "try to set ModelObject of null model"? >> >> Yes, I explicitly decided to use DropDownChoice without a model. >> Since nothing is chosen, the model object of the DropDownChoice is null. >> The behavior I expect is, the model object is the chosen option (object) >> after selecting one. >> >> But it seems, it does not work like this. >> >> Can someone please "light" me. :-) >> >> kind regards >> Patrick >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >> For additional commands, e-mail: users-h...@wicket.apache.org >> >> > -- Mit freundlichen Grüßen, Patrick Davids NuboIT GmbH & Co. KG Kieler Str. 103-107 • 25474 Bönningstedt Email: patrick.dav...@nuboit.de Handelsregister: HRA6819 Pi | Amtsgericht Pinneberg Geschäftsführung der Verwaltungsgesellschaft Daniel Fraga Zander HRB10145Pi | Amtsgericht Pinneberg --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
