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From Martin Grigorov <mgrigo...@apache.org>
Subject Re: Button not visible, except that it is...
Date Mon, 21 Aug 2017 14:57:05 GMT
On Mon, Aug 21, 2017 at 5:47 PM, Entropy <blmulholland@gmail.com> wrote:

> We have a form that underwent some re-writing.  After the changes, a button
> starts throwing the below exception.  The button is in a panel that starts
> invisible but is made visible later.  In the event that makes it visible we
> logged out the button's isVisibleInHierarchy() and it was false at the
> beginning of the method, true at the end.  And the button DID render on the
> page.
>
> So if wicket thought the button was visible by it's own method, and chose
> to
> render it, why does it later think it's not visible in the very next event?
> We are not overriding any isVisible() methods in the page.  Any ideas?
>

Just put a breakpoint at Form.java:456 and see why it thinks it is
invisible.
Most probably some of its parents is not visible if the button itself is.


>
> org.apache.wicket.WicketRuntimeException: Submit Button
> radioWmc2:radioWmc2Step2:btnResResume
> (path=form:radioWmc2:radioWmc2Step2:btnResResume) is not visible
>         at
> org.apache.wicket.markup.html.form.Form$2.component(Form.java:456)
>         at
> org.apache.wicket.markup.html.form.Form$2.component(Form.java:437)
>         at
> org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:144)
>         at
> org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
>         at
> org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
>         at
> org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
>         at
> org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:123)
>         at
> org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:860)
>         at
> org.apache.wicket.markup.html.form.Form.findSubmittingButton(Form.
> java:435)
>
>
> --
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>
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