Edit row and cell in table

Hi every one
In table how we can edit one row and in this row we can edit some cell,and not edit another cell
I can do table edit one row but all of cells in this row edit
and how we can validator data in each cell
thank advance

Have a look at this :


http://vaadin.com/forum/-/message_boards/view_message/189087

Thanks your reply
i try to do
but have some problem if want error appear ,i have component to add textfield but ,so we have to add component in each cell in table