Thanks for your answer!
With ajaxKeyx, can I have a a4j:commandbutton in each row of the loop and when I click on one of them, only reload the corresponding row?
I don't understand exactly how it work!
Afraid I can't help you much with this since I haven't used this myself.
Try the Richfaces user forum there should be some posts about it there. If you can't find anything give it a go and post what you have along with a question about how to do it.
Please post your findings, curious about how this really works.
I have only a page with many many informations and to make my action faster, I don't want to renrender all my ui:repeat but only some element.
For exemple, I want to decorate a element whith a red border when I clic on the cut bouton and for that rerender all the ui;repeat is not good...