How to hide/show a row in a panelgrid based on data entered in another row
问题 I have a panelGrid with a row containing a selectCheckBoxMenu and another row which should be shown or hidden based on the selection. Updating the entire panel when the selection is changed is not desired, because the selectCheckBoxMenu would be refreshed and the user would have to open the dropdown again for each item he wants to select. Updating the controls to be hidden or shown can't solve the problem either because they can't be updated if they are not shown because rendered was false