API Reference > iModeljs-backend > Models > Model > onUpdate onUpdate MethodProtectedStatic Beta Called before a Model is updated. onUpdate(arg: OnModelPropsArg): void note throw an exception to disallow the update note If you override this method, you must call super. note this is the class of the Model to be updated Parameter Type Description arg OnModelPropsArg Returns - void Defined in core/backend/src/Model.ts Line 165 Last Updated: 11 June, 2024