I am working an primefaces application, I am using
Primefaces 5.x version, Jsf 2.x
which has tabview
in one of the tabs I have command button, by clicking on it pdf export should happen.
For the first time click on button page is getting reloaded, from the second time on words request is going to bean page and downloading is working correctly.
this is my code snippet for command button :
<h:form id="mainForm">
<p:tabView id="myId" activeIndex="#{bean.currentTabIndex}" dynamic="true" cache="false">
<p:tab title="vehicle" id="vehId" styleClass="panelBack">
<h:form id="exportForm">
// some code
<p:commandButton value="export" process="#this" actionListener="# {bean.export()}" ajax="false" id="exportButton" />
</h:form>
</h:form>
If I make dynamic = false, it's working. I mean after clicking export button request is going to bean class, export is working.
What would be the problem? Can somebody help me?
Thank you
Yes your problem is most likely nested that is not allowed in JSF.
Related
I have a dynamic Dialog with a CommandButton or an OutputLabel inside, using a value that takes time to generate. To avoid loosing time when loading the page, I used the dynamic param of the dialog. Unfortunately, my function is still called and the necessary time to display the page is very long.
<p:dialog dynamic="true">
<h:outputText value="#{myBean.myFunction()}"/>
</p:dialog>
Any idea what the issue could be?
Using PF Version 11.0.7
Add appendTo="#(body)" to p:dialog, that should help.
<p:dialog appendTo="#(body)" dynamic="true">
<h:outputText value="#{myBean.myFunction()}"/>
</p:dialog>
visit: https://primefaces.github.io/primefaces/12_0_0/#/core/dialogframework
I have a JSF page. The framework is PrimeFaces.
The layers build up like topbar, sidebar, main-layout.
The sidebar and top bar contain a menu. Both menus are in a <form>:
<p:commandLink action="#{bean.modify}" ajax="false">
<span>Modify</span>
</p:commandLink>
The main layout also contains buttons form in another form tThe button contains a confirmDialog):
<p:commandLink id="close" action="#{bean.close}" ajax="false" update="form">
<span>Close</span>
<p:confirm header="Lezárás" message="Are you sure close it?" icon="ui-icon-alert"/>
</p:commandLink>
If I use ajax=true, just by clicking on the button in the main layout, confirmDialog does not appear.
If I use ajax = false, confirmationDialog will appear, but the page will break down for a short time. First, the page will be displayed without css formatting, and later the css will be validated.
Why can this be? What's the difference between the seven calls? In one case, why does this render the rendering in the other case why the confirmDialogs do not come up?
Update:
I've read the link, but I still do not understand why it works.
I may have written the problem incorrectly.
There is a JSF page: list.xhtml. It is a commandLink
<p:commandLink action="#{bean.modify}" ajax="false">
<span>Modify</span>
</p:commandLink>
The backing bean:
public String modify(){
return "edit.xhtml";
}
The edit.xhtml has the button with confirmDialog:
<p:commandLink id="close" action="#{bean.close}" ajax="false" update="form">
<span>Close</span>
<p:confirm header="Lezárás" message="Are you sure close it?" icon="ui-icon-alert"/>
</p:commandLink>
If I call edit.html with list.xhtm with ajax = true then confirmDialog works but the page is rendering slowly.
If I call ajax = false then rendering is fast but confirmationDialog does not work.
I do not understand because it is another page, so not just part of it is updated but the entire page
Solved
There was a bug in PrimeFaces.
https://github.com/primefaces/primefaces/commit/9f86efba16ead70f9db1194744d291a7f64acefb
I've corrected the bug in source code version 6.2 and has been working well since then.
I'am facing a strange situation were I have a commandButton (I have tried both standard h:commandButton and primefaces one p:commandButton), when the button is clicked a method in the backing bean is invoked and an Excel file is returned.This command button is inside a dialog, however I think this shouldn't affect.
Problem is that it seems that this button isn't generating any request, at least firebug doesn't show it, but I get the Excel file from the server, which doesn't make sense if there were no requests.
<h:commandButton id="downloadButton" value="Download" action="#{bean.downloadExcel}"/>
<p:commandButton id="downloadButton" value="Download" action="#{bean.downloadExcel}" ajax="false" onsuccess="confirmDialogWv.close();"/>
I don't use both buttons at the same time, just tested with both of them with same result.
What is the problem if "everything is working fine"? I can't close the dialog with an onsuccess event if I don't have any request.
Has someone faced this problem before? Any explanation?
Thanks in advance for your help!
EDIT:
<h:form id="contentForm" prependId="false" >
<!-- lot of code -->
<p:dialog id="confirmDialog"
modal="true"
closable="false"
widgetVar="confirmDialogWv"
resizable="false"
header="Confirm">
<p:commandButton id="downloadButton" value="Download" action="#{bean.downloadExcel}" ajax="false" onsuccess="confirmDialogWv.close();"/>
<p:commandButton id="openHtmlButton" value="Open HTML" process="#form" update="#form" actionListener="#{bean.openHtml}"/>
</p:dialog>
</h:form>
The second button opens a new window and works properly.
UPDATE:
As already said firebug doesn't show any request, but I've been testing now with IE and Chrome.
Chrome: Shows the request, but when I get the Excel file in the browser the status of the request becomes "canceled".
IE9: Shows the request and returns code 200, but the onsuccess event isn't triggered
I am getting "Cannot find component with identifier "contentForm:tabView:form:addressDialogPanel" referenced from "contentForm:tabView:form:addressBookTable" " error. How can I update my panelGrid inside the widget?
<h:form id="form">
<p:dataTable id="addressBookTable">
<p:ajax event="rowSelect" listener="#{addressBookController.onRowSelect}"
update="contentForm:tabView:form:addressDialogPanel" oncomplete="addressDialog.show()" />
</p:dataTable>
<p:dialog id="addressDialogId" widgetVar="addressDialog">
<h:panelGrid id="addressDialogPanel" columns="2" cellpadding="4">
</h:panelGrid>
</p:dialog>
</h:form>
The main problem is that you are giving the wrong client ID of component's. Also p:tabView is a component it is not a form. When you define a h:form, it generates a standart HTML form element. And when you submit the page JSF uses POST to submit your data into backing bean. So nesting them is going to occur lot's of issues that you don't expect. You should seperate forms into sections like sideForm or searchForm or etc.
You should detect the correct client ID of your component when you try to update it. You can do this with your browser's developer settings(press f12 for chrome). Then select component with the magnifier button and give that ID into update property. Just like here:
You should read to learn basics of JSF for example from here
I'm using JSF 2.0, Primefaces 3.4.2, Spring 3.1.2.
I'm facing a similar problem of the guy of this link: h:commandButton works from the second click.
Like him I'm not using ajax in the <p:commandButton> but I'm using a <p:fileDownload /> inside the button tag.
I have two views: "list.xhtml" and "downloadView.xhtml". In myBean.java I send a DataModel from view "list.xhtml" to view "downloadView.xhtml" as a request attribute as shown in the code below:
FacesUtil.getServletContext().setAttribute("myDataModelFromRequest", this.myDataModel);
The bean is anotted with #Scope("view")
In view "downloadView.xhtml" I populated succesfully a dataTable with the DataModel sent from request. But the problem happens when I click in the button to download the file. It only works on second try.
I already tried to change the return of my method from null to "downloadView" but the problem was not solved.
In debug mode I noticed that only enter in the "downloadMethod()" on second click.
Anyone have an idea to solve it?
myBean.java
public String viewListMethod() {
//some work here...
FacesUtil.getServletContext().setAttribute("myDataModelFromRequest", this.myDataModel);
return "downloadView";
}
downloadView.xhtml
<h:form id="formId" prependId="false">
<p:dataTable
id="dataTableId" var="myVar" value="#{myDataModelFromRequest}"
selection="#{cargaProcessoControlador.myArray}"
paginator="true" rows="10" paginatorPosition="bottom" paginatorAlwaysVisible="false">
<f:facet name="header">
bla bla bla
</f:facet>
<p:column selectionMode="multiple" style="width:18px" />
//collumns here...
</p:dataTable>
<p:commandButton id="btDownload" ajax="false" value="Download" icon="ui-icon-document" >
<p:fileDownload value="#{myBean.downloadMethod()}" />
</p:commandButton>
</h:form>
The scope "view" on spring doesn´t exist... So you created your own, right? Just to check...
I had that kind of problem once, and I think it was something to do with validation... the
immediate=true attribute solved my problem.
This is something to do with the scope of the page. Your problem is due to partial rendering of page. Initially when you load the page it is not getting loaded fully and because of that the button is not part of that particular view when you try to click on the button for the first time. Try to make you view proper or explicitly render the page from the backing bean before displaying the page