`tw2.forms.MultipleSelectionWidget` has a property `item_validator` which validates the single entries in the widget. I think it would be appropriate to have something similar for `tw2.dynforms.GrowindGridLayout`. What do the others think?
tw2.forms.MultipleSelectionWidgethas a propertyitem_validatorwhich validates the single entries in the widget.I think it would be appropriate to have something similar for
tw2.dynforms.GrowindGridLayout.What do the others think?