make a relation field that has no value, invisible

Hi
I have a relation field (list of relation items): I would like nothing to be visible in case of empty value; how can i do that?
Thanks

Hello

add the field to the 'renderonly' position of your
category or item layout

then output it manually in your item.php or in you category items.php
you check if ->display is empty

Thanks, the code is working well but only if don't put the field on renderonly area because if i do that i no longer see the field in any condition .. something i did not understood ?

renderonly doesn't display field only use for coding

I know in this case why ggpk ask me to put the field in this area ?

Hello

you have to do both of the steps

1. add field to 'renderonly' position (this creates the field but does not display it)
2. then you use the custom PHP code to display the field that was created at step 1

did you do both steps ?

until you also do step 2 , nothing will be shown !