I'm creating a page where a user selects elements to be added to a entity object from a rich datatable...simple enough. That functionality works-when I look at the domain object through the debug.seam view, I see it's being updated. But when I attempt to display/iterate over the list of elements in the domain object, I'm getting this error: | javax.el.ELException: /home.xhtml: Property 'name' not found on type java.util.HashSet | here's my code: | <h:inputText id="findMentor" value="#{newTeamFormMap.mentorName}"> | <a4j:support event="onkeyup" reRender="mentorSelectList" requestDelay="1000" ignoreDupResponces="true" eventsQueue="myQueue" /> | </h:inputText> | <rich:spacer height="10"/> | <rich:dataTable id="mentorSelectList" value="#{userHome.findByNameOrInternetID( newTeamFormMap.mentorName )}" var="user" render="#{not empty newTeamFormMap.mentorName}"> | <rich:column> | <f:facet name="header">Name</f:facet> | #{user.name} | </rich:column> | <rich:column> | <f:facet name="header">Add to List of Project Mentors</f:facet> | <a4j:commandButton type="submit" value="Add" reRender="selectedMentorList" action="#{newTeam.mentors.add(user)}" /> | </rich:column> | </rich:dataTable> | <rich:spacer height="10"/> | | <a4j:repeat id="selectedMentorList" value="#{newTeam.mentors}" var="selectedMentor" rendered="#{newTeam.mentors.size gt 0}" summary="Project Mentors"> | #{selectedMentor.name} | </a4j:repeat> | The error is occurring at the bottom, at #{selectedMentor.name} The userHome object is pretty generic-userHome.findByNameOrInternetID expects a String as a parameter and returns a Set, as is newTeam- the mentors property is a Set(HashSet) as well. Nothing is defined as a DataModel, but it seems that if that was the problem I wouldn't be able to see my entity object being updated via debug.seam. does anyone see an error or what am I doing wrong? could this be a richfaces/a4j error rather than a seam error? thanks Mike Kohout --also, if anyone was tracking my saga with SSO, I was able to get single sign on working for my site. Sometime soon I'll post all my steps... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4072087#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...