I'd like to open a dialog via the remotecommand action and get the value from the closeDialog(Object data) in the backing bean of the page.
The remoteCommand is correctly firing the actionListener in the bb on page load
<p:remoteCommand autoRun="true" actionListener="#{userManagerBB.showDialog}"/>
And the dialog is also correctly shown with this showDialog method:
public void showDialog(ActionEvent e){
...
otherBean.openDialog(selectedUser);
}
And in the otherBean:
public void openDialog(SiteUser user) {
...
RequestContext.getCurrentInstance().openDialog("userDialog", options, params);
}
The problem is that I don't know how to listen to the event triggered by:
RequestContext.getCurrentInstance().closeDialog(user);
In the PF example http://www.primefaces.org/showcase/ui/dialogFrameworkData.jsf a commandButton and p:ajax is used like this
<p:commandButton value="Select Car" icon="ui-icon-extlink" actionListener="#{dialogBean.chooseCar}">
<p:ajax event="dialogReturn" listener="#{dialogBean.onCarChosen}" update="growl" />
</p:commandButton>
But I cannot put the p:ajax inside of the remoteCommand tag:
<p:ajax> Unable to attach <p:ajax> to non-ClientBehaviorHolder parent
I've also tried to add the ajax behavior to a hidden commandButton, but the listener is never called that way. (of course I could do synchronization of data between the backing bean, but that would hurt the design of reusable dialog)
Is there some way how to work around that?
I've solved the issue by creating hidden command button and calling javascript from remoteCommand:
<p:remoteCommand autoRun="true" oncomplete="sync.jq.click()"/>
<p:commandButton widgetVar="sync" actionListener="#{userManagerBB.showDialog}" style="display:none" >
<p:ajax event="dialogReturn" listener="#{userManagerBB.userChanged}" update="form"/>
</p:commandButton>
Related
I'm using a radio component on which, when selecting an item I want to execute an action on backing bean (not navigate to an outcome page, but to perform some action and then update current page via Ajax). Problem is I can't get the backing bean value change listener action to execute
<h:form id="one-radio">
<p:selectOneRadio layout="grid"
valueChangeListener="#{myBean.selectRadioItem}" >
<p:ajax process="#this" update="#form" />
<f:selectItems value="#{myBean.radioOptions}" var="radio"
itemLabel="#{radio.name}" itemValue="#{radio.id}" >
</f:selectItems>
</p:selectOneRadio>
</h:form>
and the backing bean method...
public void selectRadioItem(ValueChangeEvent event) {
String[] selectedItems = (String[]) event.getNewValue();
//more...
}
is there something wrong in the code which I'm missing? I've used this same structure for select many check box which is working...
Rodrigo, there's a difference between valueChangeListener and a simple method call via ajax.
Check this answer by BalusC about the difference between valueChangeListener and <f:ajax>
To solve your problem, you could use the listener property of <p:ajax>.
OneRadio component is used to receive only one value, if you want to select a list of values, use SelectOneMenu
Try to do the following:
<p:selectOneRadio layout="grid" value="#{myBean.radioValue}">
<p:ajax process="#this" update="#form" listener="#{myBean.selectRadioItem}"/>
<f:selectItems value="#{myBean.radioOptions}" var="radio"
itemLabel="#{radio.name}" itemValue="#{radio.id}" >
</f:selectItems>
</p:selectOneRadio>
In the backbean, you can remove the event parameter, because the value of the OneRadio component now is a property, which I named as radioValue
String radioValue;
...
public void selectRadioItem() {
String selectedItem = this.radioValue;
//more...
}
I am having a problem, I am firing a ajax event in a selectOneMenu like this: the first one does not fire any event
<p:selectOneMenu id="IdSelectOne" value="#{MB.myentity.myValue}" converter="myConverter1">
.....
</p:selectOneMenu>
<p:selectOneMenu id="IdSelectTwo" converter="myConverter2">
<p:ajax event="change" process="#this" partialSubmit="true"
listener="#{MB.ChangeOption}" update="creatPanel" >
</p:ajax>
</p:selectOneMenu>
The problem is that when the ajax event updates the panel, the first SelectOneMenu sets tu null, i can't use #form because it validates all fields and never do what I need which is show a field based on the selection of the second SelectOneMenu, is there a way to avoid this problem to happend?
This is my backing bean:
public void ChangeOption(AjaxBehaviorEvent event){
.....
}
I solved it by updating just the element I needed and not the complete panel, Thanks
I am using an editable primefaces selectOneMenu to display some values. If the user selects an item from the List a textarea should be updated. However, if the user types something in the selectOneMenu, the textarea should not be updated.
I thought I could work this with ajax event out. However, I don't know which event I can use here. I only know the valueChange event. Are there any other events, like onSelect or onKeyUp?
Here is my code:
<p:selectOneMenu id="betreff" style="width: 470px !important;"
editable="true" value="#{post.aktNachricht.subject}">
<p:ajax event="valueChange" update="msgtext"
listener="#{post.subjectSelectionChanged}" />
<f:selectItems value="#{post.subjectList}" />
</p:selectOneMenu>
<p:inputTextarea style="width:550px;" rows="15" id="msgtext"
value="#{post.aktNachricht.text}" />
The PrimeFaces ajax events sometimes are very poorly documented, so in most cases you must go to the source code and check yourself.
p:selectOneMenu supports change event:
<p:selectOneMenu ..>
<p:ajax event="change" update="msgtext"
listener="#{post.subjectSelectionChanged}" />
<!--...-->
</p:selectOneMenu>
which triggers listener with AjaxBehaviorEvent as argument in signature:
public void subjectSelectionChanged(final AjaxBehaviorEvent event) {...}
I'd rather use more convenient itemSelect event. With this event you can use org.primefaces.event.SelectEvent objects in your listener.
<p:selectOneMenu ...>
<p:ajax event="itemSelect"
update="messages"
listener="#{beanMB.onItemSelectedListener}"/>
</p:selectOneMenu>
With such listener:
public void onItemSelectedListener(SelectEvent event){
MyItem selectedItem = (MyItem) event.getObject();
//do something with selected value
}
Be carefull that the page does not contain any empty component which has "required" attribute as "true" before your selectOneMenu component running.
If you use a component such as
<p:inputText label="Nm:" id="id_name" value="#{ myHelper.name}" required="true"/>
then,
<p:selectOneMenu .....></p:selectOneMenu>
and forget to fill the required component, ajax listener of selectoneMenu cannot be executed.
You could check whether the value of your selectOneMenu component belongs to the list of subjects.
Namely:
public void subjectSelectionChanged() {
// Cancel if subject is manually written
if (!subjectList.contains(aktNachricht.subject)) { return; }
// Write your code here in case the user selected (or wrote) an item of the list
// ....
}
Supposedly subjectList is a collection type, like ArrayList. Of course here your code will run in case the user writes an item of your selectOneMenu list.
I am trying to have an h:inputText switch out with a different one when an h:commandButton is clicked. To do this, I am trying to tie an f:ajax command with the h:commandButton, with the listener setting a value on the bean (deciding which one to display), and re-rendering the area.
I have tried using listener on the f:ajax, actionListener on the h:commandButton, action on the h:commandButton with execute on the f:ajax. Nothing worked. The mothed I am trying to call is not being called at all - there is no println (see what follows).
The panelGroup is being re-rendered, which is why I need the onevent attribute that re-attaches some JavaScript hint text based on the title (I had an earlier question involving this).
The method I am trying to call:
public void morePressed(AjaxBehaviorEvent e) {
easySearch = !easySearch;
System.out.println("Made it!");
}
The JSF segment that is not working (note the last h:commandButton is trying to re-render the panelGroup):
<h:form>
<h:panelGroup id="switchSearchTexts">
<h:inputText accesskey="s" alt="Search" id="searchBoxPeople" title="Search Plebeians" valueChangeListener="#{peopleBean.simplePersonQuery}" size="25" rendered="#{peopleBean.easySearch}">
<f:ajax render="peopleDataTable" event="keyup" />
</h:inputText>
<h:inputText accesskey="s" alt="Search First Name" id="searchBoxFN" title="Search First Name" size="25" rendered="#{!peopleBean.easySearch}">
<f:ajax render="peopleDataTable" event="keyup" />
</h:inputText>
</h:panelGroup>
<div id="expandBox">
<h:inputText id="searchBoxLN" alt="Search Last Name" styleClass="hideToggle" title="Search Last Name" size="25" />
<h:inputText id="searchBoxAddress" alt="Search Address" styleClass="hideToggle" title="Search Address" size="25" />
</div>
<h:commandButton type="button" styleClass="moreButtonAsText" id="moreButtonAsText" value="â–¸More">
<f:ajax listener="#{peopleBean.morePressed}" render="switchSearchTexts" event="click" onevent="callFunctionAjaxRequest" />
</h:commandButton>
This is the JavaScript (jQuery) that I attach to the More button on pageload. I give it not because I think it could help, but I don't know if this could interfere with the ajax listener in any way:
$(function() {
textboxHint();
$('input[id$="moreButtonAsText"]').toggle(function(e) {
$(this).prop('value', '\u25c2Less');
$(".hideToggle").show(300);
}
, function () {
$(this).prop('value', '\u25b8More');
$(".hideToggle").hide(100);
$('input[id$="searchBoxAddress"]').prop('value', function() {
return $(this).prop('title');
});
$('input[id$="searchBoxAddress"]').blur();
});
});
I have no idea. As I said, I have tried actionListener on h:commandButton with various appraoches there, as well as various approaches to the listener on the ajax. Can anybody see why the listener does not work?
Update:
What I ended up doing, before having an answer, is converting everything to display and hide based on JavaScript, with stuff I needed hidden if they didn't have javascript initially hidden, etc.
However I need the f:ajax elsewhere, now.
The solution is to take out event="click" on the h:commandButton. I still do now know why this was causing it to break, but hey, whatever works.
I had an issue like this. It turned out that an inputText somewhere had a value="#{something.something}" where the property wasn't settable. The exception wasn't being reported anywhere. I had to put a breakpoint on Exception and all subclasses to find it.
Do you really have a function named callFunctionAjaxRequest in your js code? cause if not it may cause the button not to work (because its being referenced to a not existing function) ,
look at the firebug for a possible errors...
try this version of your command button (event="click" can be removed too... and self execute too)
<h:commandButton type="button" styleClass="moreButtonAsText" id="moreButtonAsText" value="More">
<f:ajax listener="#{peopleBean.morePressed}" render="switchSearchTexts" />
</h:commandButton>
Another thing , in your ajax calls of the upper input texts you got reference to searchBoxPeople twice (instead to searchBoxFN in the second f:ajax), fix it cause otherwise when working with searchBoxFN its f:ajax will try to execute an element that its not being rendered ... (can cause serious issues...)
p.s prependId="false" in your h:form will simplify your selectors in jQuery...
The issue is that the managed bean needs to be set up with the right signature event as an input param. Through lots of testing, I was trying to use the same class taking an AjaxBehaviorEvent. As in the same example on the previous forum.
when I declared an ActionListener event (compliant with the button jsf action), the bean is executed!
I had the same problem and followed your example to help me exactly. I simply (20 hrs) fixed this by including the following in my bean:
The first one now gets fired!
public void actionListener(ActionEvent actionEvent) {
// Add event code here...
System.out.println("Made it!");
}
public void morePressed(AjaxBehaviorEvent e) {
System.out.println("Made it!");
}
Good Afternoon,
I have a search page that uses ajax to render a several datatables without refreshing the page.
It is mandatory for me to call a Method as a Listener for each table.
Below is the snippet for the first datatable that works fine.
To render a second datatable I need to call a method #{evalController.prepareList} as a Listener for the ajax. The problem is that <f:ajax "Listener" attribute won't take more than one method.
So the remaining way is to call <f:ajax several times, and each time with a different listener, which does not work. Is there a way to achieve this?
If not, should I create a method in the managed Bean that calls all the methods that I need and use it as the one listener?
Thanks in advance for your help.
<h:form id="searchform">
<h:panelGrid columns="3" >
<p:inputText value="#{ddnController.patientID}" id="pidinput" maxlength="7" size="7">
<f:ajax execute="#this" event="keyup" render="searchbutton ddntable" listener="#{ddnController.prepareList}"/>
</p:inputText>
<h:commandButton image="#{resource['images/search.png']}" id="searchbutton" value="#{bundle.Search}"
action="submit" actionListener="#{ddnController.prepareList}"
disabled="#{empty ddnController.patientID or ddnController.patientID.equals('0')}"/>
<p:panel><h:outputText value="Saisir 0 pour avoir tous les Patients" style="font-style: italic;"/></p:panel>
</h:panelGrid>
<p:dataTable id="ddntable" value="#{ddnController.items}" var="ddn" rendered="#{!empty ddnController.items}" paginator="true" >....
I am still not sure why the composite method do not have effect when called. Probably it is not called during before or after the right phase (I'll be profiling it later). Anyway, I found a solution with two edges (it is solving my problem but makes me sacrifice the use of ajax) :
So Instead of calling - from each managed bean - the method (prepareList()) which I use as listener:
private DataModel items = null; // Getter to retrieve items
// ......
public String prepareList() {
recreatemodel();
return "List";
}
private void recreatemodel(){
items=null;
}
(by the way, this method sets the datamodel to NULL to refresh it, and that is how my datatables get refreshed).
Inside the command button I nested property action listener:
<h:commandButton image="#{resource['images/search.png']}" id="searchbutton" value="#{bundle.Search}"
action="submit"
disabled="#{empty ddnController.patientID or ddnController.patientID.equals('0')}">
<f:PropertyActionListener target="#{ddnController.items}" value="#{null}" />
<f:PropertyActionListener target="#{evalController.items}" value="#{null}" />
<f:PropertyActionListener target="#{corController.items}" value="#{null}" />
<!--...etc -->
</h:commandButton>
I wish <f:PropertyActionListener /> could be nested inside <h:ajax/>.
If somebody has a solution that allows to use property action listener and ajax to avoid submitting the form with a button, s/he is welcome. I'll make then his/her answer as accepted.