A company uses a model-driven app to record details of laboratory test. You are asked to create a custom component that makes it easier to capture…

In a model-driven app, a Power Apps component-framework (PCF) dataset control must redraw itself whenever the framework supplies data – whether the device is online or working from the mobile client’s offline cache.

The framework performs that hand-off through the updateView(context) lifecycle method. updateView is called every time the dataset (and associated paging/selection metadata) changes, including when the user’s device has lost connectivity and the app is running in offline mode; therefore it is the correct place to render the interface that captures multiple lab-test values.

A. SaveData – Canvas-app function; not part of PCF or model-driven apps; cannot be used in a custom component.

C. init – Runs only once at control creation; does not receive refreshed dataset rows, so cannot handle offline updates.

D. getClient – Utility that returns client type (e.g., Web, Mobile); does not deliver dataset records or render UI.

1. Microsoft Docs, “Power Apps component framework – Dataset components (model-driven apps),” section “updateView,” states method is invoked when dataset changes and in offline mode. https://learn.microsoft.com/powerapps/developer/component-framework/dataset-controls#updateview

2. Microsoft Docs, “Support offline capabilities in Power Apps component framework controls,” paragraph “Framework calls,” confirms updateView is called with offline data. https://learn.microsoft.com/powerapps/developer/component-framework/offline-capabilities#framework-calls

3. Microsoft Docs, “SaveData, LoadData functions in canvas apps,” clarifies SaveData is available only in canvas apps, not PCF/model-driven. (Power Apps formula reference, SaveData)

4. Microsoft Docs, “init method (Power Apps component framework),” describes single initialisation call, no dataset refresh. https://learn.microsoft.com/powerapps/developer/component-framework/standard-control-interfaces#init

5. Microsoft Docs, “context.client.getClient() (Client API),” returns client type; unrelated to data rendering. https://learn.microsoft.com/power-apps/developer/model-driven-apps/clientapi/reference/context/client/getclient