Is there a way to create dynamically <rich:tab> elements?
Let say that I want to create a variable set of <rich:tab>
elements within a <rich:tabPanel>
component. So I tried to do that way:
<rich:tabPanel switchType="client" ...>
<ui:repeat value="#{myBean.myTabs}" var="tab">
<rich:tab name="#{tab.name}" label="#{tab.label}"/>
</ui:repeat>
</rich:tabPanel>
But it didn't work, as no tab is rendered. I also got the following message in the logs:
j_id174: tab panel has no enabled or rendered tabs!
This problem seems to be encountered by others people, for example here.
So as suggested by the previous thread, I replaced my <ui:repeat>
by a <c:forEach>
but the problem still occurs.
I have a way to solve this problem using the binding
attribute of my <rich:tabPanel>
component:
<rich:tabPanel switchType="client" binding="#{tabNavigationBean.tabPanel}"
</rich:tabPanel>
and then in my Java bean:
private HtmlTabPanel tabPanel; // + getter and setter
public void setTabPanel(HtmlTabPanel tabPanel) {
this.tabPanel = tabPanel;
if (tabPanel != null) {
createTabs();
}
}
private void createTabs() {
Application application = FacesContext.getC开发者_Python百科urrentInstance().getApplication();
HtmlTab newTab = null;
for (DedicatedPageTab dpt : getDedicatedPageTabs()) {
newTab = (HtmlTab) application.createComponent(HtmlTab.COMPONENT_TYPE);
newTab.setLabel(dpt.getLabel());
newTab.setName(dpt.getName());
tabPanel.getChildren().add(newTab);
}
}
This code is working.
However, my question is to know if I can solve my problem without using the binding
attribute (i.e. a 100% pure XHTML solution)?
<a4j:outputPanel id="out">
<rich:tabPanel>
<c:forEach items="list" var="var">
<rich:tab label="#{var.name}" switchType="client">
content
</rich:tab>
</c:forEach>
</rich:tabPanel>
</a4j:outputPanel>
Yes, it is possible, but difficult. Here are some notes I have:
Use c:forEach to create tab tags inside tabPanel inside outputPanel. reRender outputPanel on tab removal, add, or name change
http://relation.to/11633.lace
http://devharbor.blogspot.com/2009/08/add-jsf-controls-dynamically-with.html
We also made use of templating, though I still have an outstanding issue for it: How to force the build phase in a JSF 1.2 page using JSTL?
http://facelets.java.net/nonav/docs/dev/docbook.html#template Docs on templating
http://www.jsfcentral.com/articles/facelets_3.html Templating tutorial
精彩评论