Andrew, entryBean is indeed in request scope. Indeed, entryBean.subProjects is always null, and I suspected this was related to the 'disabled' attribute. Thus my question is: how can I set the proper value before the decoding is done? When should that be performed?
Thanks for your help Jean-Noel On 15 Feb 2010, at 19:03, Andrew Robinson wrote: > What scope is entryBean? > > If entryBean is requestScope, then entryBean.subProjects will be null > on each request and would need to be set before the decoding is done, > otherwise the 2nd choice will never decode as it will be disabled. If > entryBean is not requestScope than you also have a problem as you > cannot use component binding with non-request scoped objects. > > -Andrew > > On Sun, Feb 14, 2010 at 8:32 AM, Jean-Noël Colin <[email protected]> wrote: >> Hi >> >> I need to write a simple page with 2 selectOneChoice components, the second >> being dependent on the first. This means that the second should be disabled >> as long as a correct value in the first one has not been selected. Also, the >> items in the second need to be dynamically loaded depending on the content >> on the first one. >> >> I guess this should be easily feasible in Trinidad, but obviously, I must be >> missing something because I can't get it to work. it seems that the value of >> the second component never gets properly populated in the bean entry. Also, >> strangely, in the 'valuechangelistener', the oldvalue is always null, even >> when a proper value was correctly selected. >> >> Also, is it possible to avoid the presence of a 'empty' selectItem by >> auto-selecting the first valid entry (how can I do that)? >> >> Thanks a lot for your help >> >> Jean-Noel Colin >> >> >> >> >> <tr:selectOneChoice id="project" >> label="project" >> binding="#{entryBean.projectSelector}" >> >> value="#{entryBean.currentLine.projectId}" showRequired="true" >> autoSubmit="true" >> unselectedLabel="Select" immediate="true" >> >> valueChangeListener="#{entryBean.projectChangeListener}"> >> <f:selectItems >> value="#{globalData.activeprojects}" /> >> </tr:selectOneChoice> >> <tr:selectOneChoice id="subproject" >> label="sub-project" >> partialTriggers="project" >> binding="#{entryBean.subProjectSelector}" >> >> value="#{entryBean.currentLine.subProjectId}" showRequired="true" >> unselectedLabel="Select" >> disabled="#{empty entryBean.subProjects}"> >> <f:selectItems >> value="#{entryBean.subProjects}" /> >> </tr:selectOneChoice> >> >>
