[jboss-user] [JBoss Seam] - Re: No selected element from <h:selectOneListbox>
haefti
do-not-reply at jboss.com
Mon Jan 14 06:22:00 EST 2008
Hi!
First of all thanks for the answer!
"jmodadams" wrote : I believe the problem here is that you have not specified a value attribute in the h:selectOneListbox tag, which is how you bind the selected value to your backing bean.
|
| If you were to add a video property to your manager bean with a public setter method, you could then do the following:
|
Okay, I thought I could inject it via @In or @DataModelSelection or something similar.
My managerAction now looks like this:
| @Stateless
| @Name("manager")
| public class ManagerAction implements Manager{
|
| @Logger
| Log log;
|
| private Video selVideo;
|
| public Video getselVideo() {
| return selVideo;
| }
|
| public void setSelVideo(Video selVideo) {
| this.selVideo = selVideo;
| }
|
| public String editVideo () {
| log.info("selected video Id: " + selVideo.getVideoId());
| return "edit";
| }
| .
| .
| .
| }
|
the hello.xhtml contains this code:
| <h:form>
|
| <h:selectOneListbox size="10" value="#{manager.selVideo}">
| <s:selectItems value="#{videos}" var="video" disabled="#{video.videoId < 25000 ? true : false}"
| label="(#{video.datum}) #{video.videoId} - #{video.thema}: #{video.headline}" />
| <s:convertEntity />
| </h:selectOneListbox>
|
| <h:commandButton type="submit" action="#{manager.editVideo()}" value="ÃÂÃÂndern"></h:commandButton>
|
| </h:form>
|
and I added this to my pages.xml:
| <page view-id="/hello.xhtml">
|
| <navigation from-action="#{manager.editVideo}">
| <rule if-outcome="edit">
| <redirect view-id="/edit.xhtml"/>
| </rule>
| </navigation>
|
| </page>
|
but if I choose an item from the list and press the button I still get back to the hello.xhtml and do not get the log output of the editVideo() method.
If I don't choose anything and press the button I get an (expected) NullPointerException from the method editVideo() because selVideo is null can not be logged.
Any idea?
Thanks!
Haefti
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