Hi All,i have define descriptionContainer with addCondition to manage the control for the add of maModel to Database.descriptionContainer ^(super descriptionContainer) addCondition: [:memento | (self controlToDataBase: memento)] labelled: 'Member not definable'; yourself It work fine but when i create the component with:self call: ((ModelClass descriptionFieldOne, ModelClass descriptionFieldTwo, ModelClass descriptionFieldThree)asComponentOn: aModel) addValidatedForm; yourselfthe descriptionContainer d'ont work.I have add descriptionContainer to the array of description but d'ont work well.Thanks for any consideration,Dario