How can I prevent render a widget label inside my layout if it has a null or blank value

[geekonspace]

My document has a value blank and I want to prevent render this widget in my layout

[Fred_Vadon]

To control de display of a widget and if you use Nuxeo Studio, you will find what you look for at the corresponding documentation page : http://doc.nuxeo.com/x/eY1H