In a html page I have a h:commandButton that I want to make it to work in combination with a h:selectBooleanCheckbox, so every time I press the button the checkbox will be checked and otherwise.
Is it possible to do that directly in the html, and not in the java code behind it?
<h:commandButton value="#{userBean.buttonText()}" action="#{userBean.changeOutput()}"/>
<h:panelGrid columns="4" rendered="#{userBean.details}" styleClass="clicked" >
<h:outputText .... />
<h:outputText ..../>
</h:panelGrid>`
If you are using JSF 2, you have to update the area that include your checkbox, using f:ajax tag.
You can find a lot of examples here in stackoverflow, look this example just hide/show a div: After showing / hiding a JSF element with AJAX how to hide the triggering element?
Hope it helps.
Related
I have a jsf page in the form of
<h:form>
<rich:dataTable id="myTable">
<!--Table Data-->
</rich:dataTable>
<rich:dataScroller for="myTable"/>
</h:form>
When the table is in a <h:form> it doesn't scroll (the scroller is disabled) but once I take them out of the <h:form> it works fine. Issue is I need them to be in a form for the rest of my code to work. Anyone know the reason for the issue? I've seen people ask about it but no good answers.
I figured it out. I was using the form in a modal pane and the <ui:include> was within a <h:form> so there was an issue with it being a form within a form.
I am looking for something like <rich:popupPanel> in RichFaces 4, but then for RichFaces 3. I haven't found anything like in documenation. There is only <rich:modalPanel> which doesn't suit my needs, because it has problems displaying my datamodel in table. The selection doesn't work, it always returns no rows selected. If I put my table component in <rich:panel> or <rich:togglePanel>, then it works fine.
Is there any popup window excluding <rich:modalPanel> in RichFaces 3?
I dont have 50 reputation to ask you more details in a comment, so i will answer directly hoping this is what you're asking about.
I think you mean that your problem is that the content of the ModalPanel is not rerendered dynamically. but for this you can wrap your table (or the components you want to update) in an <a4j:outputPanel> with ajaxRendered="true"
Setting ajaxRendered="true" will cause the <a4j:outputPanel> to be updated with each Ajax response for the page, even when not listed explicitly by the requesting component. This can in turn be overridden by specific attributes on any requesting components.
http://docs.jboss.org/richfaces/latest_4_0_X/Component_Reference/en-US/html/chap-Component_Reference-Containers.html#sect-Component_Reference-Containers-a4joutputPanel
In my code I have something like :
<a4j:commandLink id="timelineBtn" action="#{timelineBean.doGenerateLog}"
oncomplete="Richfaces.showModalPanel('timelinePnl');return false;"
value="#{labels['timeline.button.lbl']}"/>
that opens the modalPanel :
<rich:modalPanel style="width:800;height:600;" id="timelinePnl">
<a4j:outputPanel id="dataPanel" ajaxRendered="true">
<!-- your components to be updated go here -->
</a4j:outputPanel>
</rich:modalPanel>
So my content is updated with the results of my timelineBean.doGenerateLog method each time i open the modalPanel .
I currently have a giant ui:repeat. Within this ui:repeat, some of the repeated objects have a url to a popup image associated with them. When someone clicks display under that particular object, I need the url to popup in a p:dialog.
<ui:repeat var="thing" value="#{bean.thingList}">
<p:commandLink value="details" onclick="miniImage.show();"
update=":#{p:component('chart')}"
action="#{bean.setCurrentImg(thing.imageUrl)}"
rendered="#{thing.includeImage}">
</p:commandLink>
</ui:repeat>
and at the bottom of the page:
<p:dialog id="chart" widgetVar="miniImage" >
<h:graphicImage value="#{bean.currentImg}"/>
</p:dialog>
And in the backing bean I tried using a simple setter and getter for currentImg.
I am a bit confused on this now and would like to accomplish this without having to submit the entire form as well. Any help is greatly appreciated.
If you're using PrimeFaces 3.3 or newer, you could just add partialSubmit="true" to the command component. You can then control the to-be-processed components in process attribute. In this particular case, just the current component (the command component itself) is sufficient, thus so process="#this":
<p:commandLink ... process="#this" partialSubmit="true" />
This way only the request parameters which are really necessary for the process will be sent.
Unrelated to the concrete problem, I suggest to use oncomplete instead of onclick to open the dialog. Otherwise the dialog is opened before update takes place and may cause poor user experience as the enduser would see the image instantly changing.
I have a problem with these two commandButton : Join and Leave.
I want to hide Join if I click on leave and vice-versa.
When I put ajax on false, there is no problem (but all the page is refresh and I don't find this optimal).
But when ajax attribut is on true with specific updating (cf comment in the code), the rendering is good but the new button whitch appear become inactive. If I click on it, nothing happens (well it's seems the actionListener trigger but the view is not refreshed, I have to manual refresh to see the difference)
Thanks for reading.
<h:form id="formWaitingList" rendered="#{connexion.connected}" >
<p:commandButton id="Join"
actionListener = "#{connexion.joinWaitingList()}"
rendered="#{!connexion.waiting}"
ajax="false"
<!-- ajax="true"
update="Join,Leave"-->
value="Join"/>
<p:commandButton id="Leave"
value="Leave"
ajax="false"
<!-- ajax="true"
udpate="Join,Leave"-->
rendered="#{connexion.waiting}"
actionListener ="#{connexion.leaveWaitingList()}" />
</h:form>
It seems that you're not entirely familiar with HTML/JavaScript. You know, JSF is basically a HTML/JavaScript(/CSS) code generator. Ajax updating works basically like this in JavaScript:
After sending the ajax request to JSF via XMLHttpRequest, retrieve a XML response which contains all elements which needs to be updated along with their client IDs.
For every to-be-updated element, use document.getElementById(clientId) to find it in the current HTML DOM tree.
Replace that element by new element as specified in ajax XML response.
However, if a JSF component has not generated its HTML representation because of rendered="false", then there's nothing in the HTML DOM tree which can be found and replaced. That totally explains the symptoms you're "seeing".
You basically need to wrap conditionally rendered JSF components in a component whose HTML representation is always rendered and then reference it instead in the ajax update.
For example,
<h:form>
...
<h:panelGroup id="buttons">
<p:commandButton ... update="buttons" rendered="#{condition}" />
<p:commandButton ... update="buttons" rendered="#{not condition}" />
</h:panelGroup>
</h:form>
See also:
Why do I need to nest a component with rendered="#{some}" in another component when I want to ajax-update it?
I have a JSF page on which I want to have a checkbox that, when clicked, will add/remove certain other form fields from the page. Here is the (simplified) code I currently have for the checkbox:
<h:selectBooleanCheckbox title="showComponentToReRender" value="#{backingBean.showComponentToReRender}">
<a4j:support event="onsubmit" reRender="componentToReRender" />
</h:selectBooleanCheckbox>
Here is the code for the component I want to hide:
<h:selectOneMenu id="componentToReRender" value="#{backingBean.value}" rendered="#{valuesList.rowCount>1 && backingBean.showComponentToReRender}">
<s:selectItems value="#{valuesList}" var="value"/>
</h:selectOneMenu>
Currently, clicking the checkbox does nothing; that "selectOneMenu" will not go away. What am I doing wrong?
You need to wrap the componentToReRender in either:
<h:panelGroup id="componentToReRenderWrapper">
or
<a4j:outputPanel id="componentToReRenderWrapper">
So, effectively you will have:
<h:panelGroup id="componentToReRenderWrapper">
<h:selectOneMenu id="componentToReRender" value="#{backingBean.value}" rendered="#{valuesList.rowCount>1 && backingBean.showComponentToReRender}">
<s:selectItems value="#{valuesList}" var="value"/>
</h:selectOneMenu>
</h:panelGroup>
and change the reRender="componentToReRenderWrapper" in case you use panelGroup, or remove that attribute, in case you use outputPanel.
Found the exact explanation in the RichFaces docs:
Most common problem with using reRender is pointing it to the component that has a "rendered" attribute. Note, that JSF does not mark the place in the browser DOM where the outcome of the component should be placed in case the "rendered" condition returns false. Therefore, after the component becomes rendered during the Ajax request, RichFaces delivers the rendered code to the client, but does not update a page, because the place for update is unknown. You need to point to one of the parent components that has no "rendered" attribute. As an alternative, you can wrap the component with layout="none" .
Don't forget to set ajaxRendered="true" on the a4j:outputPanel