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Editorial Team
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Asked: 2026-06-15T05:52:27+00:00

I am using JSF2 facelets. I am trying to insert a piece of code

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I am using JSF2 facelets.

I am trying to insert a piece of code from one page into the other using <ui:composition> and <ui:insert> tags.

I have page A, which includes code from page B.

<h:form id="formIdPageA">
…

<h:form id="formIdPageB">

The problem seems to be form id, since I get error:

System error: Cannot find component with identifier ":formIdPageA:fileListId" in view.

Here is a piece of code from page B that gets inserted into page A. Here ids can be seen:

                    <tr>
                        <td colspan="2">
                            <p:selectOneMenu id="locationId" value = "#{PFMultiFileSelectMgmtBean.selectedLocationId}">
                                <p:ajax update=":formIdPageA:fileListId" listener="#{PFMultiFileSelectMgmtBean.LocationChangeEvent}"/>
                                <f:selectItems value="#{PFJobMgmtBean.outputLocationList}"/>                                
                            </p:selectOneMenu>
                        </td>
                        <td>                                
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <p:selectManyCheckbox id="fileListId" value="PFMultiFileSelectMgmtBean.selectedFiles"  layout="pageDirection">  
                                <f:selectItems value="#{PFMultiFileSelectMgmtBean.fileNames}" />  
                            </p:selectManyCheckbox>  
                        </td>
                    </tr>

And this is how I insert it in page A:

<p:dialog id="basicDialog" header="Select Files" widgetVar="dlgMultiFileSelect" modal="true" height="500" width="500" resizable="false">
    <ui:insert>  
        <ui:include src="/pageB.xhtml"/>
    </ui:insert>  
</p:dialog>

Does anyone know if it is possible to include page like this? Does <ui:composition> go before body tab or after in page B? Is this ok:

<body>
    <f:view>    
        <h:form id="formIdPageB">
                <ui:composition>...

?

Ok, found it:

The problem was that I used PrimeFaces component <p:dialog> and placed it in page A outside <h:form> and outside <body>, like this:

   </h:form>
 </f:view>      
</body>
<p:dialog...>        
   <ui:include src="/pageB.xhtml"/>       
</p:dialog>

That seems to be wrong. Now I moved <p:dialog> inside form and all is ok.

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1 Answer

  1. Editorial Team

    The problem was that I used PrimeFaces component and placed it in page A outside and outside , like this:

        </h:form>
  </f:view>      
</body>
<p:dialog...>        
   <ui:include src="/pageB.xhtml"/>       
</p:dialog>

    That seems to be wrong. Now I moved inside the form and all is ok.

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