hello thanks for your help,
i have a datatable but i need to hide some columns if the user want to hidde some column, my bean is of session, when the user click in a button the button change the boolean variable of the rendered of the column tag to false, the content of the column is no displayed but the header no change is keep. i think that is for the session bean. the datatable no recalculate the header. some know how i can hidde the header?
