The EditValue property contains an editor's current value which is valid. If an end-user has entered an invalid value, it is not posted to the EditValue until it is corrected.
By default, each time the EditValue property's value is changed, the following events are raised:
BaseEdit.Validate - This event is raised before the editor's value is changed, and enables you to specify whether the editor's value is valid, and whether the editor is allowed to lose focus. To disable validation, set the BaseEdit.CausesValidation property to false.