editable grid validator bonita 5.10.2
You could create a Groovy validator that you place on the widget.
However, be aware that the validator error message will not tell you precisely which cell is invalid.
The best way to fill and validate a complex form like this are:
* using a group of widget if you are using the Subscription edition
* using a HTML widget with a third party JS component such as DataTables that renders an editable grid.