Hi Daniel, As Milo points out, this could be the typical issue of improper mixing of build-time and render-time components (there are of course also cases of their proper mixing) as described e.g. at http://theholyjava.wordpress.com/2011/10/28/jsf-beware-the-difference-between-build-time-and-render-time-tags-in-facelets/Even though it may occasionally work, it isn't reliable and can easily break with a new release. This is just a general note, I don't know so much about your particular problem or MyFaces internals.
Regards, Jakub Holy On Tue, Jan 17, 2012 at 9:31 AM, Milo van der Zee <m...@vanderzee.org>wrote: > Hello Daniel, > > some code snippets could be helpfull. > What do you mean by 'from time to time'? Doe you use an ajax library to > rerender the table or do you mean by complete page render? > > Do you need the id's on the columns? Can't you just let JSF assign id's? > > I know that c: tags work problamatic with the view tree because they are > not an element in that tree. Often using ui:repeat works better. > > I don't know what is changed between 2.0.8 and 2.0.11. Might be that > they now follow the specs better... > > MAG, > Milo van der Zee > > > On Tue, 2012-01-17 at 08:37 +0200, Daniel Reznick wrote: > > Hi > > > > Till now I was creating dynamic columns inside a dataTable using the > > c:forEach , I was assigning unique Ids to each column and from time to > time > > was re-creating the table with different columns with no problem at all > > > > I was using the myfaces-api-2.0.5, myfaces-bundle-2.0.5 and the > > myfaces-impl-2.0.5 jars , yesterday I switched to 2.0.11 , and the > > c:forEach started to throw me errors , "java.lang.IllegalStateException > > component with duplicate id" > > and the id that was displayed was the id of the first column, so I guess > > for some reason it tries to create the same columns again and again and > > still remembers the old columns, > > > > so after seeing this error I downgraded to 2.0.8 , and the error was > gone, > > so... Some thing went WRONG between 2.0.8 and 2.0.11, > > > > what could it be? > > > > How can I solve this issue , cause I need to use 2.0.11 version, > > > > > > Help will be very appreciated, > > > > > > Regards, > > > > Daniel. > > >
