<p:treeTable value="#{listeSiteBean.rootTree}" var="st"
                            resizableColumns="true">

                            <p:column width="5%" headerText="#{i18n['arpgapNom']}">
                                <h:outputText value="#{st.site.nom}" />
                            </p:column>

                            <p:column width="5%" headerText="#{i18n['arpgapDescription']}">
                                <h:outputText value="#{st.site.description}" />
                            </p:column>