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Posted to users@wicket.apache.org by agilbert <al...@doane.edu> on 2011/01/26 21:50:29 UTC
setOutputMarkupId(true) on
org.apache.wicket.markup.html.panel.Panel
I'm trying to understand what it means to output a markup ID on a reusable
wicket panel. If I understand correctly, the <wicket:panel> element is
removed from production markup and can contain elements that aren't
necessarily wrapped in a single element (e.g. a <div>). So, what does
Wicket do when you call setOutputMarkupId(true) on a Panel? Does it assume
that you actually want to output markup IDs for all direct children of the
<wicket:panel> element?
This question came to light when I recently upgraded to Wicket 1.4.15.
Since then, I've been getting the following warning messages:
[org.apache.wicket.Component] Markup id set on a component that is usually
not rendered into markup.
Turns out I have some Panels that contain, among other things, a few
<wicket:container> elements, which I use to output plain text via Labels (if
there's a better way to do this, I'm all ears). Anyway, in my code, I'm not
explicitly instructing the Labels to output markup IDs, but I am telling the
Panel to. When I disable the call to setOutputMarkupId for the panel, the
warning messages disappear, which leads me to believe that Panels actually
set markup IDs for their direct descendants. However, looking through the
Wicket source, I can't find any code to back up my assumption.
Thanks in advance for any imparted Wicket wisdom!
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Re: setOutputMarkupId(true) on
org.apache.wicket.markup.html.panel.Panel
Posted by Allen <al...@doane.edu>.
Igor,
Thanks for the explanation...I was indeed attaching my Panel to a
<wicket:container> tag.
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Re: setOutputMarkupId(true) on org.apache.wicket.markup.html.panel.Panel
Posted by Igor Vaynberg <ig...@gmail.com>.
calling setoutputmarkupid on a panel will output an id to the tag to
which the panel is attached, eg
add(new mypanel("foo"))
<div wicket:id="foo"> <-- the tag that will have markup id output
since you attach a panel to wicket:container tag and call
setoutputmarkupid(true) on it, the id will never be rendered because
wicket:container tag to which the panel is attached will not be
rendered.
-igor
On Wed, Jan 26, 2011 at 12:50 PM, agilbert <al...@doane.edu> wrote:
>
> I'm trying to understand what it means to output a markup ID on a reusable
> wicket panel. If I understand correctly, the <wicket:panel> element is
> removed from production markup and can contain elements that aren't
> necessarily wrapped in a single element (e.g. a <div>). So, what does
> Wicket do when you call setOutputMarkupId(true) on a Panel? Does it assume
> that you actually want to output markup IDs for all direct children of the
> <wicket:panel> element?
>
> This question came to light when I recently upgraded to Wicket 1.4.15.
> Since then, I've been getting the following warning messages:
>
> [org.apache.wicket.Component] Markup id set on a component that is usually
> not rendered into markup.
>
> Turns out I have some Panels that contain, among other things, a few
> <wicket:container> elements, which I use to output plain text via Labels (if
> there's a better way to do this, I'm all ears). Anyway, in my code, I'm not
> explicitly instructing the Labels to output markup IDs, but I am telling the
> Panel to. When I disable the call to setOutputMarkupId for the panel, the
> warning messages disappear, which leads me to believe that Panels actually
> set markup IDs for their direct descendants. However, looking through the
> Wicket source, I can't find any code to back up my assumption.
>
> Thanks in advance for any imparted Wicket wisdom!
> --
> View this message in context: http://apache-wicket.1842946.n4.nabble.com/setOutputMarkupId-true-on-org-apache-wicket-markup-html-panel-Panel-tp3238774p3238774.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
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