Don't use actionListener but just simply use action. All you want should
be working as expected.
<h:commandButton
action="#{pulldownTest.handleChangeItem}" value="Submit"/>
public String handleChangeItem() {
LOGGER.debug("handleChangeItem()");
return "success";
}
Emily
-----Original Message-----
From: Jason Vincent [mailto:[EMAIL PROTECTED]
Sent: Monday, February 06, 2006 4:14 PM
To: Struts Users Mailing List
Subject: Re: [Shale] a command btn within a conditionally "rendered"
form not getting actionListener.
I put the messages tag in there, but I'm getting nothing from that tag.
I've witnessed JSF swallowing exceptions before. Is there a way to get
JSF to log the stacktraces to my logger?
I've really simplified my test case and I'm still seeing the problem.
I have a pull down at the top with a submit btn.
When the submit button is clicked, it called the actionListener as
expected. The page is rerendered with the second part of the page
showing the item selected with another button. When the 2nd button is
clicked, no actionListener is called.
Here is the sample code:
public class PulldownTest {
private static final Log LOGGER =
LogFactory.getLog(PulldownTest.class);
private String selectedFilterValue;
public SelectItem[] getFilterPulldown() {
SelectItem[] items = new SelectItem[3];
items[0] = new SelectItem("","");
items[1] = new SelectItem("1","1");
items[2] = new SelectItem("2","2");
return items;
}
public String getSelectedFilterValue() {
return selectedFilterValue;
}
public void setSelectedFilterValue(String selectedFilterValue) {
this.selectedFilterValue = selectedFilterValue;
}
public boolean isItemSelected() {
boolean isItemSelected = null != selectedFilterValue &&
!"".equals(selectedFilterValue);
LOGGER.debug("isItemSelected="+isItemSelected);
return isItemSelected;
}
public void handleSelectItem(ActionEvent event) {
LOGGER.debug("handleSelectItem()");
}
public void handleChangeItem(ActionEvent event) {
LOGGER.debug("handleChangeItem()");
}
}
Here is the JSP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@
taglib prefix="f" uri="http://java.sun.com/jsf/core"; %> <%@ taglib
prefix="h" uri="http://java.sun.com/jsf/html"; %>
<f:loadBundle var="messages" basename="Messages"/> <META
HTTP-EQUIV="Pragma" CONTENT="no-cache"/> <META HTTP-EQUIV="Expires"
CONTENT="-1"/> <f:view>
<html xmlns="http://www.w3.org/1999/xhtml";>
<body>
<h:form>
<h:messages/>
<h:outputText value="Choose Item:"/>
<h:selectOneMenu id="spPlat"
value="#{pulldownTest.selectedFilterValue}">
<f:selectItems
value="#{pulldownTest.filterPulldown}"/>
</h:selectOneMenu>
<h:commandButton
actionListener="#{pulldownTest.handleSelectItem}" value="Submit"/>
<h:panelGrid columns="1"
rendered="#{pulldownTest.itemSelected}">
<h:outputText value="Item Selected =
#{pulldownTest.selectedFilterValue}"/>
<h:commandButton
actionListener="#{pulldownTest.handleChangeItem}" value="Submit"/>
</h:panelGrid>
</h:form>
</body>
</html>
</f:view>
Any futher help is greatly appreciated.
Jason
On 2/5/06, Craig McClanahan <[EMAIL PROTECTED]> wrote:
> On 2/5/06, Jason Vincent <[EMAIL PROTECTED]> wrote:
> >
> > Hi all,
> >
> > For some reason a cmd btn of mine isn't calling its actionListener
> > method when it is clicked.
> >
> > Here is the situation. I have a pull down at the top of my page
> > which chooses the item that I want to edit below. I hit the submit
> > button next to the pulldown, and the second half of the page is
> > rendered. I used the rendered attribute on the table containing the
> > rest of the form.
> >
> > So when I change a few items in the second half, I hit an update
> > submit button to save the changes and POOF... nothing - the page
> > just refreshes. the actionListener is never called. Infact no
> > action or action listener.
> >
> > Why isn't the action listener called?
> >
> > I've also tried having two forms on the page, where the second form
> > had a hidden field of the selected item of the first form. This
> > would help the situation where the user changes the selected item in
> > the filter form, but also has made changes to the previously viewed
item.
> > I'd want to make sure the changes goto the right item. When I tried
> > this, for some reason the getter methods to retrieve the items data
> > was called before the set method for the hidden field was called
> > which gave me NPE's since the item to get the data from hadn't been
> > loaded yet - which is what the set method of the hidden field would
> > have done.
> >
> > Is there a way to control the ordering of which UI objects are
> > processed first? I tried the immediate attribute of the hidden
> > field to get that to go first, but it did nothing.
> >
> > BTW, for the 2 form scenario, when I got the NPE's I would hit the
> > back button to go back to the form, it is then that I would notice
> > that it would call my update Information eventListener method. arg.
> >
> > What is going on here?
>
>
> Roughly 99% of the time :-), this sort of thing is caused by a
> validation error occurring, which causes the call to your action to be
> skipped and the page rerendered. Stick a <h:messages> component on
> the page and any such messages should show up.
>
> Thanks,
> > Jason
>
>
> Craig
>
>
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