API Reference > imodeljs-backend > Elements > Element > onChildAdded onChildAdded MethodProtectedStatic Called after an existing element has been updated so that an instance of this class is its new parent. onChildAdded(_arg: OnChildElementIdArg): void note this is the class of the new parent Element. Parameter Type Description _arg OnChildElementIdArg Returns - void Defined in core/backend/src/Element.ts Line 307 Last Updated: 29 November, 2022