For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt, and this page is available as Markdown at /api/genui/openui/functions/useSetDefaultValue.md.
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      • genui / openui / useSetDefaultValue

      useSetDefaultValue() 

      function useSetDefaultValue(shouldTriggerSaveCallback: object): void

      Persists a component's default/initial value into form state once streaming finishes — but only if the user hasn't already set a value.

      Call this inside any form component that has a defaultValue or defaultChecked prop. It is a no-op during streaming so that LLM prop changes don't fight with partial state.

      Parameters

      ParameterTypeDescription
      shouldTriggerSaveCallbackobjectDefaults to false (only local state, no message persistence).
      shouldTriggerSaveCallback.componentType?string-
      shouldTriggerSaveCallback.defaultValueunknown-
      shouldTriggerSaveCallback.existingValueunknown-
      shouldTriggerSaveCallback.formName?string-
      shouldTriggerSaveCallback.namestring-
      shouldTriggerSaveCallback.shouldTriggerSaveCallback?boolean-

      Returns

      void

      Defined in

      @lynx-js/genui/openui/src/core/context.tsx:182

      Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.