I think you are correct, calling setOutputMarkupId(true) is not necessary
when calling setOutputMarkupPlaceholderTag(true). If I remember correctly
from looking at the code for setOutputMarkupPlaceholderTag(), this will
call setOutputMarkupId(true) for you.
From: Duro <develma...@yahoo.com>
To: users@wicket.apache.org
Date: 12/21/2010 08:24 AM
Subject: Re: Visibility setting with Ajax
thanks, setOutputMarkupId(true) is probably not necessary., but adding
the component to target and setOutputMarkupPlaceholderTag(true) is.
Now i tried to mak eit work even better and removed the panels from the
site. i want to add them just on time, when the user request it. so site
looks now like this:
wicket:extend>
<div align="center" style="background-color:red;padding:20px">
<h2>Epubs upload</h2>
<form wicket:id="form">
<div style="background-color:#304050">
<span wicket:id="panel"/>
<a href="#" wicket:id="addLink">Add next file</a>
<br/>
<input wicket:id="submitButton" type="submit" value="Datei(en) laden"/>
</div>
<div wicket:id="feedback" class="error" style="background-color:yellow"/>
</form>
</div>
</wicket:extend>
and i try to create the panel dynamically:
public void onClick(AjaxRequestTarget target) {
panel.setOutputMarkupPlaceholderTag(true);
target.addComponent(panel);
panel.add(new UploadFilePanel("filePanel"));
the markup of UploadFilePanel:
<wicket:panel>
<table style="padding-bottom:5px">
<tr>
<td width="180px">Typ</td>
<td><select wicket:id="type" /></td>
<td>Titel</td>
<td><input type="text" wicket:id="title" /></td>
</tr>
<tr>
<td>Jahr</td>
<td><input type="text" wicket:id="year" /></td>
<td>Ausgabe Nummer</td>
<td><input type="text" wicket:id="issueNumber" /></td>
</tr>
<tr>
<td>Datei</td>
<td><input wicket:id="fileUploadField" type="file" /></td>
<td colspan="2" valign="bottom">Ich bin Inhaber
des Mediens<input type="checkbox" wicket:id="ownerCheckbox"/></td>
</tr>
</table>
</wicket:panel>
this all end in the error:
WicketMessage: The component(s) below failed to render. A common problem
is that you have added a component in code but forgot to reference it in
the markup (thus the component will never be rendered).
1. [MarkupContainer [Component id = panelX]]
2. [MarkupContainer [Component id = type]]
3. [MarkupContainer [Component id = title]]
4. [MarkupContainer [Component id = year]]
5. [MarkupContainer [Component id = issueNumber]]
6. [MarkupContainer [Component id = fileUploadField]]
7. [MarkupContainer [Component id = ownerCheckbox]]
i understand that i didnt declare the things in the markup, but thats
what i want (create them not at the start, but never or later, when the
user clicks on the link). So what is needed to create the
UploadFilePanel dynamically?
thanks for help
> 1-Put
>
> uploadPanel2.setOutputMarkupId(true);
> uploadPanel2.setOutputMarkupPlaceholderTag(true);
> uploadPanel2.setVisible(false);
>
> when you create the panel.
>
> 2- on
>
> public void onClick(AjaxRequestTarget target) {
> uploadPanel2.setVisible(true);
> target.addComponent(uploadPanel2);
> }
>
> Ernesto
>
> On Tue, Dec 21, 2010 at 1:38 PM, Juraj Petko<juraj.pe...@gmail.com>
wrote:
>> Hi, i have 3 panels on my page:
>> wicket:extend>
>> <div align="center" style="background-color:red;padding:20px">
>> <h2>Epubs upload</h2>
>> <form wicket:id="form">
>> <div style="background-color:#304050">
>> <span wicket:id="uploadPanel1"/>
>> <span wicket:id="uploadPanel2"/>
>> <span wicket:id="uploadPanel3"/>
>> <a href="#" wicket:id="addLink">Add next file</a>
>> <br/>
>> <input wicket:id="submitButton" type="submit" value="Datei(en) laden"/>
>> </div>
>> <div wicket:id="feedback" class="error"
style="background-color:yellow"/>
>> </form>
>> </div>
>> </wicket:extend>
>>
>> and only after clicking addLink, the user should see the uploadPanel2.
So i
>> coded this:
>>
>> add(new AjaxFallbackLink("addLink") {
>> private static final long serialVersionUID =
>> -4427831923318024979L;
>>
>> @Override
>> public void onClick(AjaxRequestTarget target) {
>> uploadPanel2.setVisible(true);
>> }
>> });
>>
>> When i debug, the method onClick() is really entered and
>> uploadPanel2.setVisible(true) is executed, but the panel is still not
>> visible. What else i have to do?
>> thanks!
>>
>>
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