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Posted to users@myfaces.apache.org by octoberdan <da...@october5th.net> on 2006/05/03 16:44:07 UTC
Re: Picklist problem
Did you get this working?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
Oh! and if I use h:hiddenFeild, the form breaks again *rolls eyes*
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
I messed around with it untill it started working... Assignees is now an
Integer[] and the values in the SelectItems stored in workerItems are now
Integers
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Re: Picklist problem
Posted by Bruno Aranda <br...@gmail.com>.
And when the form does not submit, do you get any message?
On 5/5/06, octoberdan <da...@october5th.net> wrote:
>
> Does that make sense to you?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
Does that make sense to you?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
I think I figured it out... and the answer is a catch 22. If I change
assigneeItems to be a collection of objects of the same class as those
stored in the SelectItem values of the workerItems collection, the page
loads and the desired items are preselected, BUT since assigneeItems and
workerItems are no longer collections of the same type, the form no longer
submits. Weird, huh?
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Re: Picklist problem
Posted by Bruno Aranda <br...@gmail.com>.
Can you copy the whole stacktrace?
Bruno
On 5/5/06, octoberdan <da...@october5th.net> wrote:
>
> Gah! Further complications! If AssigneeItems isn't empty (as in, it contains
> SelectItems), I get the following exception:
>
> javax.servlet.ServletException: java.lang.ClassCastException:
> javax.faces.model.SelectItem
>
> Any idea what this is about?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
Gah! Further complications! If AssigneeItems isn't empty (as in, it contains
SelectItems), I get the following exception:
javax.servlet.ServletException: java.lang.ClassCastException:
javax.faces.model.SelectItem
Any idea what this is about?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
Wow! Can't beleive I missed that... oi. Alright! Everything works wonderfully
and I don't need the change listener.
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Re: Picklist problem
Posted by Volker Weber <us...@weber-oldenburg.de>.
you have:
getAssigneeItems
but
setAssignees
octoberdan wrote:
> I should have posted the code:
>
> Chunk of the java code:
>
> private List<SelectItem> workerItems;
> private List<SelectItem> assigneeItems;
>
> public List<SelectItem> getAssigneeItems() {
>
> if (null == assigneeItems) {
> List<InvolvedPerson> involvedPeople = getInvolved();
> assigneeItems = new ArrayList<SelectItem>();
>
> for (InvolvedPerson p : involvedPeople) {
> assigneeItems.add(new SelectItem(String.valueOf(p.getId()),
> p.getFullName()));
> }
> }
>
> return assigneeItems;
> }
>
> public void setAssignees(List<SelectItem> assigneeItems) {
> this.assigneeItems = assigneeItems;
> }
>
> public void selectionChanged(ValueChangeEvent evt) {
> System.out.println(evt.getNewValue());
> }
>
> public void setWorkerItems(List<SelectItem> items) {
>
> }
>
> JSF code:
>
> <h:outputText value="Assignees: "/>
> <s:selectManyPicklist id="assignees"
> value="#{projectCreationBacker.assigneeItems}"
> valueChangeListener="#{projectCreationBacker.selectionChanged}" size="5">
> <f:selectItems value="#{projectCreationBacker.workerItems}"/>
> </s:selectManyPicklist>
> <f:verbatim><br><br></f:verbatim>
>
> <h:commandButton type="submit" value="Create"
> action="#{projectCreationBacker.create}"/>
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
I should have posted the code:
Chunk of the java code:
private List<SelectItem> workerItems;
private List<SelectItem> assigneeItems;
public List<SelectItem> getAssigneeItems() {
if (null == assigneeItems) {
List<InvolvedPerson> involvedPeople = getInvolved();
assigneeItems = new ArrayList<SelectItem>();
for (InvolvedPerson p : involvedPeople) {
assigneeItems.add(new SelectItem(String.valueOf(p.getId()),
p.getFullName()));
}
}
return assigneeItems;
}
public void setAssignees(List<SelectItem> assigneeItems) {
this.assigneeItems = assigneeItems;
}
public void selectionChanged(ValueChangeEvent evt) {
System.out.println(evt.getNewValue());
}
public void setWorkerItems(List<SelectItem> items) {
}
JSF code:
<h:outputText value="Assignees: "/>
<s:selectManyPicklist id="assignees"
value="#{projectCreationBacker.assigneeItems}"
valueChangeListener="#{projectCreationBacker.selectionChanged}" size="5">
<f:selectItems value="#{projectCreationBacker.workerItems}"/>
</s:selectManyPicklist>
<f:verbatim><br><br></f:verbatim>
<h:commandButton type="submit" value="Create"
action="#{projectCreationBacker.create}"/>
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
As for messages I'm getting:
'Bean: com.loomis.jsf.backingbean.ProjectCreationBackingBean, property:
assigneeItems'
Does that make sense?
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Re: Picklist problem
Posted by Volker Weber <us...@weber-oldenburg.de>.
octoberdan wrote:
> Alright. I'm using an valueChangeListener, it works and everything's groovy
> on that side of things, but the form's action method is no longer being
> called. What would be a possible reason for this?
Possible reasons for skipping ApplicationPhase:
Validation errors : put a <t:messages> on your page to see them!
Conversion errors : put a <t:messages> on your page to see them!
calling of facesContext.renderResponse() somewehre in your code!
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
Alright. I'm using an valueChangeListener, it works and everything's groovy
on that side of things, but the form's action method is no longer being
called. What would be a possible reason for this?
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Re: Picklist problem
Posted by Bruno Aranda <br...@gmail.com>.
Yes, the example uses a valueChangeListener and no value attribute.
There is the valueChangeListener only to check the items selected and
update the info string. If you pass a value with an array of String
(the selected values) as the value attribute of the picklist, those
values will be preselected when the component is rendered. If you
don't want any item preselected, just don't pass a value.
Look at the sources of the example (jsp [1] and backing bean [2]), and
if you need more detailed information, refer to the selectManyListbox
documentation [3].
Regards,
Bruno
[1] http://www.irian.at/myfaces-sandbox/picklist.jsp.source
[2] http://svn.apache.org/viewcvs.cgi/*checkout*/myfaces/tomahawk/trunk/sandbox/examples/src/main/java/org/apache/myfaces/examples/picklist/PicklistBean.java?content-type=text%2Fplain
[3] http://java.sun.com/javaee/javaserverfaces/1.1_01/docs/tlddocs/h/selectManyListbox.html
On 5/3/06, octoberdan <da...@october5th.net> wrote:
>
> but that's with a valueChangeListener... can't you just set the value to be
> an array?
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Re: Picklist problem
Posted by octoberdan <da...@october5th.net>.
but that's with a valueChangeListener... can't you just set the value to be
an array?
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Re: Picklist problem
Posted by Bruno Aranda <br...@gmail.com>.
Yes, in the myfaces demo app [1] you can see the picklist working,
and it is using a backing bean,
Cheers,
Bruno
[1] http://www.irian.at/myfaces-sandbox/picklist.jsf;jsessionid=5C28CD0822F1C421233495C8EF9263DB
On 5/3/06, octoberdan <da...@october5th.net> wrote:
>
> Did you get this working?
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>
>