API Reference > imodeljs-backend > ElementAspects > ElementAspect > onUpdate onUpdate MethodProtectedStatic Beta Called before an ElementAspect is updated. onUpdate(_arg: OnAspectPropsArg): void note throw an exception to disallow the update note If you override this method, you must call super. Parameter Type Description _arg OnAspectPropsArg Returns - void Defined in core/backend/src/ElementAspect.ts Line 78 Last Updated: 12 June, 2024