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From: Mike Kienenberger <mkienenb@gmail.com>
Date: Thu, 20 Feb 2014 12:40:37 -0500
Message-ID: 
 <CAM1yOjZqY+=9iw-gm7wsqoFjv3oqvRO_8STHx_bjodknNJDoBg@mail.gmail.com>
Subject: Re: problem wit hvisualize a size of colletion into a datatable
To: MyFaces Discussion <users@myfaces.apache.org>
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Calling arbitrary methods like size() isn't supported in EL 2.1,
although I think it might be in EL 2.2.

Here's the way to do it that will work in any version of JSF.

            xmlns:jstl="http://java.sun.com/jsp/jstl/functions"

[...]
                         <h:outputText
value="#{jstl:length(item.professors)} tot
projects"/>



On Thu, Feb 20, 2014 at 11:21 AM, maurojava <mauro2java2011@gmail.com> wrote:
> From the projectController , i have a method: getCollectionProject that
> return a List<Project> .
> Each project contains a list of Professor .
> SO into the last line i would  show the amount of professors for the project
> .
>
> The var item rappresent a project.
> project contains a List<Professor>
> i  write "#{item.professors.size()}" for get the amount of professors for
> the project valutated form each iteration .
>
>
> Whi into the last outputText :
>    <h:outputText value="#{item.professors.size()} tot projects"/>
>
> it shows only the words tot projects and not show the value of listSize?
>
>
> --------------------------------
>
> <h:form>
>
> <h:outputText value="List"/>
>                 <h:dataTable value="#{projectController.collectionProject}"
> var="item">
>                     <h:column>
>                         <f:facet name="header">
>                             <h:outputText value="Id"/>
>                         </f:facet>
>                         <h:outputText value="#{item.id}"/>
>                     </h:column>
>                     <h:column>
>                         <f:facet name="header">
>                             <h:outputText value="name of project"/>
>                         </f:facet>
>                         <h:outputText value="#{item.name}"/>
>                     </h:column>
>
>                      <h:column>
>                         <f:facet name="header">
>                             <h:outputText value="numbers of professors"/>
>                         </f:facet>
>                          <h:outputText value="#{item.professors.size()} tot
> projects"/>
>                     </h:column>
>
>
>                 </h:dataTable>
>             </h:form>
>
>
>
> --
> View this message in context: http://myfaces.10567.n7.nabble.com/problem-wit-hvisualize-a-size-of-colletion-into-a-datatable-tp117242.html
> Sent from the MyFaces - Users mailing list archive at Nabble.com.