Synchronously triggered before field rendering.

• Synchronous
• Suitable for handling field data or UI-related synchronous initialization logic

Parameters

Parameter	Description	Type
fieldName	api_name of the field that triggered the event	String
objApiName	api_name of the object that triggered the event	String
dataIndex	dataIndex of the record that triggered the event, used for detail-object data	String

See the field-type-specific event definitions for special parameters.

Return Value

See the field-type-specific event definitions for special return values.

Notes

• Calling dataUpdater in this event is not suitable.