Hi -- I'm trying to set the portlet preferences (portletHeight) through an AJAX call. I've opted to use the serveResource() method of the portlet. When I invoke the portlet function, serveResource(), through the AJAX call, the method does get executed. Within the serveResource() method, I then proceed to update my portlet preference as such: String portletHeight = request.getParameter("portletHeight"); | | PortletPreferences portletPreference = request.getPreferences(); | portletPreference.setValue("portletHeight", portletHeight); | portletPreference.store(); I have defined the portlet preferences within the portal.xml file as such: ... | | <portlet-preferences> | <preference> | <name>portletHeight</name> | <value>20</value> | <read-only>false</read-only> | </preference> | </portlet-preferences> | | ... I read in the Portlet 2.0 Specification that one can modify the portlet preferences from within the serveResource() method as I've done. I couldn't find any working example that uses the serveResource( method to update portlet preferences. Does anyone know any reason why this would not work? Thanks a million ahead of time. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4181740#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...