API Reference > imodeljs-frontend > Views > ViewState > onModelDisplayTransformProviderChanged onModelDisplayTransformProviderChanged Readonly Beta onModelDisplayTransformProviderChanged: BeEvent<(newProvider: undefined | ModelDisplayTransformProvider) => void> = ... Event raised just before assignment to the ViewState.modelDisplayTransformProvider property, only if the view is attached to a Viewport. Defined in core/frontend/src/ViewState.ts Line 146 Last Updated: 12 June, 2024