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https://issues.apache.org/jira/browse/WICKET-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Grigorov resolved WICKET-3247.
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Resolution: Not A Problem
This is already possible. See WICKET-1312.
Component has #send() method that can broadcast events with payload.
> Provide a possibility to send Objects to nested components within Form Submit
> -----------------------------------------------------------------------------
>
> Key: WICKET-3247
> URL: https://issues.apache.org/jira/browse/WICKET-3247
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 1.5-M3
> Reporter: Martin Dilger
>
> I deeply miss the possibility to send Objects to nested Components from
> FormSubmit.
> Image this Scenario;
> On a Page, you submit a Form and you get some Result from a Backend-System,
> for example a List of AddressCorrections (List<AddresData>).
> Your Page uses a couple of Panels, like a PersonDataPanel that uses an
> AdressPanel internally.
> I want the Possibility to send the Adresscorrections to the AdressPanel that
> handles them (Painting the AdressFields, activating a DropDownChoice for
> AdressChoice or something like that).
> Currently you need to provide access to the Components withing the Nested
> Panels (like getAdressDropDown).
> I suggest something like an Interface, that interested Components can
> implement:
> IFormSubmitCallback {
> onFormSubmit(Object value);
> }
> In the Page, within onSubmit, you should be able to send an IVisitor, that
> looks for this Interface, calls onFormSubmit and provides interested
> components
> with the corresponding value.
> ..
> onSubmit(){
> Object result = backend.getSomeResult();
> visitComponents(new FormSubmitVisitor(result));
> }
> I'm highly interested in your opinion on this and would love to try to
> provide a patch, but first of all, please correct me if this is nonsense,
> thank you!
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