immediate="true" causes lot of troubles.
David Heffelfinger wrote:
Hello,
Before describing my problem, I need to disclose that I am new to
Trinidad, therefore it is entirely possible I am missing something
obvious.
Not sure if it matters, I am using Trinidad 1.2.3, deploying on
GlassFish 2.
I am trying to update the options in one <tr:selectOneOption> when the
value of another <tr:selectOneOption> changes. Based on what I read at
http://myfaces.apache.org/trinidad/devguide/ppr.html#autoSubmit, this
should be fairly simple:
set autoSubmit="true" on the first <tr:selectOneOption>, bind its
valueChangeListener property to a method to be executed when the value
of the component changes, and set the partialTriggers property of the
second <tr:selectOneOption> to the id of the first one.
I attempted this procedure to no avail, I don't think the first
<tr:selectOneOption> is triggering a partial submit at all. I Googled
around and found some example code in the archives for this list:
http://www.mail-archive.com/[email protected]/msg43646.html
The code shown in this message was very similar to what I had, but
since mine wasn't working and this one allegedly was, I pretty much
copied and pasted both the JSP and the backing bean code, but
unfortunately it still didn't work.
My JSP looks like this:
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"; version="2.1"
xmlns:f=" http://java.sun.com/jsf/core";
xmlns:h="http://java.sun.com/jsf/html"; xmlns:tr="
http://myfaces.apache.org/trinidad
<http://myfaces.apache.org/trinidad>"
xmlns:trh="http://myfaces.apache.org/trinidad/html";>
<f:view>
<tr:document id="document1">
<tr:form id="form1">
<tr:panelFormLayout id="panelFormLayout1">
<tr:selectOneChoice label="Select one:"
required="true"
requiredMessageDetail="You must select one"
unselectedLabel="Select one..."
value="#{testBean.firstSelection}"
readOnly="false"
valueChangeListener="#{
testBean.selectionChange}"
autoSubmit="true"
id="firstSelection"
immediate="true">
<f:selectItems value="#{testBean.firstList}"
id="selectItems1" />
</tr:selectOneChoice>
<tr:selectOneChoice id="selectOneChoice2"
label="Select:"
unselectedLabel="Select another one..."
value="#{testBean.secondSelection}"
rendered="true"
partialTriggers="firstSelection">
<f:selectItems value="#{testBean.secondList}"
id="selectItems2" />
</tr:selectOneChoice>
</tr:panelFormLayout>
</tr:form>
</tr:document>
</f:view>
</jsp:root>
and the backing bean looks like this (package, imports, getters and
setter ommited):
public class Foo
{
private String firstSelection;
private String secondSelection;
private List<SelectItem> secondList;
public void selectionChange(ValueChangeEvent event)
{
String value = (String) event.getNewValue();
if (value.equals("a"))
{
secondList = Arrays.asList(new SelectItem("apple"));
}
else if (value.equals("b"))
{
secondList = Arrays.asList(new SelectItem("blue"));
}
}
After packaging and deploying, I change the value of the first
<tr:selectOneChoice>, but the options of the second one don't change.
Can someone please point out what am I doing wrong?
I have attached a zip file containing the whole project, buildable
with Maven, in case someone wants to try it out.
Thanks in advance for any help.
David
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