I have a fairly serious problem getting the webuijsf:addRemove to
work. I've examined all the documentation I can find, and the examples
at <
http://webdev2.sun.com/example/faces/index.jsp>, and am still
entirely befuddled. Briefly, I need to pre-populate both the
"available" and "selected" lists, as some items are already "selected"
in the underlying data set.
The code is partially generated, partially hand written, using the
Visual JSF designer in Netbeans 6.1. The project under consideration
is deployed to JBoss 4.2.2.GA running under Java 1.5.0_14.
The JSF page has the following for the widget:
<webuijsf:addRemove availableItemsLabel="Available:"
binding="#{EditGroup.addRemoveList1}"
id="addRemoveList1"
items="#{EditGroup.addRemoveList1DefaultOptions.options}"
label="Users"
labelOnTop="true"
required="true"
rows="20"
selectAll="true"
selected="#{EditGroup.addRemoveList1DefaultOptions.selectedValue}"
selectedItemsLabel="Selected:"
sorted="true"
style="left: 168px; top: 144px; position: absolute"/>
the backing bean for the page (which is derived from the bog-standard
AbstractPageBean) has the following in it's prerender() method:
@Override
public void prerender() {
// populate the two text fields from the group info,
then populate the pick list
setGroupId(getSessionBean1().getCurrentGroupId());
Group g = getSessionBean1().getGroup(getGroupId());
setGroupDescr(g.getName());
Set<String> members = getSessionBean1().listGroupMembers(groupId);
List<PwsUserDetails> users = getSessionBean1().getUsers();
// make a list of all people NOT in the group already
List<PwsUserDetails> subList = new LinkedList<PwsUserDetails>();
for (PwsUserDetails user : users) {
String uid = user.getLoginName();
if (!members.contains(uid)) {
subList.add(user);
}
}
Option[] userOptions = new Option[subList.size()];
int i = 0;
for (PwsUserDetails user : subList) {
if (user.getFullName().length() > 0) {
userOptions[i] = new Option(user.getLoginName(),
user.getFullName());
} else {
userOptions[i] = new Option(user.getLoginName(),
user.getLoginName());
}
i++;
}
getAddRemoveList1DefaultOptions().setOptions(userOptions);
getAddRemoveList1DefaultOptions().setSelectedValue(members.toArray());
getAddRemoveList1().setValue(members.toArray());
}
(Yes, it's a bit clunky, but I've left it clunky while I'm getting to
the bottom of the problem.)
The problem is that the values in the "selected" side are never, ever
getting rendered into the HTML page. The available options render
fine, though. I have confirmed absolutely that the set of items I am
trying to put in is not empty. The explicit call to setValue() on the
bound attribute was out of desperation. The page(s) were tested using
Safari 3.1.x, MS Internet Explorer 7, and Firefox 3.x, all under
Windows XP.
Can *anyone* suggest what might be wrong here. Is it something stupid
that I'm doing, or is it some more sinister underlying (known) bug?
Responses eagerly sought, if only to prevent me trying to ingest my
own body weight in coffee.
On that latter note, does anyone else have trouble with the
dev.java.net websites? I'm finding that they are horribly, horribly
slow to respond, if at all, and the javascript in them is throwing
lots of errors.
--
----
mailto:rahook_at_gmail.com
http://www.parttimepolymath.net (source PGP signature from here)
Robert Hook
Brisbane, Qld, Australia