Hi,
I somehow doubt this is considered good practice to let one component
know where in the component tree another component is situated.
The code you propose breaks very easily e.g. if you introduce another
container around the ADDT. Why don't you just pass the ADDT instance into
the AjaxLink?
something like:
final AjaxFallbackDefaultDataTable myADDT = ...
AjaxLink link = new AjaxLink("link", new PropertyModel(obj, "id"))
{
public void onClick(AjaxRequestTarget target)
{
target.addComponent(myADDT);
}
}
...but I'm not sure if that's a better practice. At least this doesn't
break as easily if you change the position of the ADDT in the component
tree.
Maybe a core-dev could shed some light on this issue?
cheers,
Jonas
On Tue, Jan 27, 2009 at 2:21 PM, Philipp Daumke <[email protected]> wrote:
> Hi all,
>
> I finally my error and post the working solution. I need to use a colon ":"
> to find children.
>
> AjaxLink link = new AjaxLink("link", new PropertyModel(obj, "id"))
> {
> public void onClick(AjaxRequestTarget target)
> {
> Page page = target.getPage();
> AjaxFallbackDefaultDataTable myADDT=
> (AjaxFallbackDefaultDataTable) page.get("tabs:panel:relTable");
> target.addComponent(myADDT);
> }
> }
>
> For "tabs", "panel" and "relTable" I put setOutputMarkupId(true); (don't
> know whether this was necessary).
>
> Philipp
>>
>> Dear Cemal,
>>
>> thanks for your fast help. You understood what I meant but I still have
>> the problem, that I don't know how to get the instance myADDT. I tried
>> Page page = target.getPage();
>> AjaxFallbackDefaultDataTable myADDT= (AjaxFallbackDefaultDataTable)
>> page.get("relTable");
>>
>> but get "myADDT=null". Probably because "relTable" is something like the
>> 2nd or 3rd ancestor on that page (see below)?
>>
>> Thanks for your help again
>> Philipp
>>
>> My Main HTML-Page Index.html:
>> ...
>> <span wicket:id="tabs" class="tabpanel"></span>
>> ...
>>
>> Includes this subpage Index$TabPanel1.html
>> <wicket:panel>
>> <table class="relTable" cellspacing="0"
>> wicket:id="relTable">[table]</table>
>> <(wicket:panel>
>>
>>
>>> Philipp,
>>>
>>> I'm not sure I have fully understood what you are after but it may be
>>> that
>>> something as straight forward as making the component to be added (ADDT)
>>> invisible - setVisible(false) - when first added to its parent (eg the
>>> page)
>>> and making it visible in your AjaxLink (AL) onClick implementation.
>>>
>>> Don't forget to setOutputMarkupPlaceholderTag(true) as well as
>>> setOutputMarkupId(true) on your ADDT and to add the ADDT to the
>>> AjaxRequestTarget - target.addComponent(myADDT) - in that onClick method.
>>>
>>> Regards - Cemal
>>> http://www.jWeekend.co.uk jWeekend
>>>
>>> Philipp Daumke-2 wrote:
>>>
>>>>
>>>> Dear all,
>>>>
>>>> I look for an example how to render Wicket-Components (in my case an
>>>> AjaxDefaultDataTable) triggered by other Components (in my case AjaxLink).
>>>> In my case the two components are defined in different Java-Classes. I
>>>> looked for a while in the examples and in the wiki, but coudln't find
>>>> anything.
>>>>
>>>> I appreciate your help or just a few links to some examples!
>>>> All the best
>>>> Philipp
>>>>
>>>> To make a silly example, I look for something like:
>>>>
>>>> class1
>>>> ....
>>>> AjaxLink link = new AjaxLink("link", new PropertyModel(obj, "id"))
>>>> {
>>>> public void onClick(AjaxRequestTarget target)
>>>> {
>>>> getComponent("myAjaxDefaultDataTable").render();
>>>> }
>>>> };
>>>> ...
>>>>
>>>> class2
>>>> ...
>>>> add(new
>>>> AjaxFallbackDefaultDataTable("myAjaxDefaultDataTable", columns,
>>>> relationProvider, 20)
>>>> {
>>>> {
>>>> setOutputMarkupId(true);
>>>> }
>>>> });
>>>> --
>>>>
>>>> Averbis GmbH
>>>> c/o Klinikum der Albert-Ludwigs-Universität
>>>> Stefan-Meier-Strasse 26
>>>> D-79104 Freiburg
>>>>
>>>> Fon: +49 (0) 761 - 203 6707
>>>> Fax: +49 (0) 761 - 203 6800
>>>> E-Mail: [email protected]
>>>>
>>>> Geschäftsführer: Dr. med. Philipp Daumke, Kornél Markó
>>>> Sitz der Gesellschaft: Freiburg i. Br.
>>>> AG Freiburg i. Br., HRB 701080
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
> --
>
> Averbis GmbH
> c/o Klinikum der Albert-Ludwigs-Universität
> Stefan-Meier-Strasse 26
> D-79104 Freiburg
>
> Fon: +49 (0) 761 - 203 6707
> Fax: +49 (0) 761 - 203 6800
> E-Mail: [email protected]
>
> Geschäftsführer: Dr. med. Philipp Daumke, Kornél Markó
> Sitz der Gesellschaft: Freiburg i. Br.
> AG Freiburg i. Br., HRB 701080
>
>
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