"adamkoprowski" wrote : However, I'm somehow less impressed with the fact that it does not fully cooperate with Trinidad - a component library on which I am (just as tons of other people) heavily relying. Part of the problem here is that Trinidad have taken ages to get a release out - once their 1.0.0 release is out (any day now I think) we can start improving Seam integration. anonymous wrote : -) As I read on this forum (and experienced myself) I cannot use Seam's extended EL (parameters to methods) with Trinidad. I don't know of anyone who has got this working. anonymous wrote : -) As I'm dealing with Trinidad table @DataModel and @DataModelSelection won't work. They *should* do - and I haven't heard anyone say they don't. The current feeling is that page parameters are better than @DataModel stuff. If they aren't working with Trinidad can you file a JIRA issue, and I'll try to take a look. anonymous wrote : -) My first idea was to use plain <f:param> to propagate the id of table entry but I want to do redirect to detail page so request parameters are not propagated, right? If you do a redirect yes. Thats why we have page parameters in pages.xml. anonymous wrote : -) My second idea was to use the Seam pages.xml mechanism for request parameters propagation with the following navigation entry: | | | <page view-id="/master.xhtml"> | | <navigation> | | <rule if-outcome="viewDetail"> | | <redirect view-id="/detail.xhtml"> | | <param name="id" value="#{master.selectedEntry.id}"/> | | </redirect> | | </rule> | | </navigation> | | </page> | | | But then in selectedEntry I need to figure out which table entry was clicked but for some reason the component tree has only AjaxViewRoot root component with no children. | Hence my questions: is it normal that the component tree is not available in this context? If not what may I be doing wrong? If so, how can I get the id of selected table entry? I don't get *why* you need to do this. Surely with the id of the selectedEntry you can load it from the persistence context and edit it? Take a look at the way a seam-gen'd project does things - that demonstrates the use of page parameters for master/detail. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4026915#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...