Yes, except ui example does not use a thing like that: | <?xml version="1.0" encoding="UTF-8"?> | <page xmlns="http://jboss.com/products/seam/pages" | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.0.xsd"> | | <param name="firstResult" value="#{markupRepresentationList.firstResult}"/> | <param name="order" value="#{markupRepresentationList.order}"/> | <param name="from"/> | <param name="fulltext" value="#{markupRepresentationList.criteria.fulltext}"/> | <param name="cmtid" value="#{markupRepresentationList.criteria.committee}"/> | </page> | In UI example in selectItems.xhtml, conversation is propagated and parsonHome.update is called. In UI example i only find: <page view-id="/selectItems.xhtml"> <begin-conversation join="true"/> So only personId is bind with personHome.id. What I want it to bind a request parameter with my selectMany (cmtid with "#{markupRepresentationList.criteria.committee}") But because of an unknown reason, in Pages.java line 779 (valueExpression.setValue(object)) object is not a list, set or array but a simple string containing "[Lmymodel.Committee;@1afbdd4" View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4105840#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...