formatSet

formatSet: string | undefined

Identifier of a FormatSet whose formats take precedence for this field, letting one iModel mix presentations such as metric and imperial callouts.

Application-chosen, and matched against the ids supplied to ElementDrivesTextAnnotation.registerFieldFormatting; iTwin.js does not resolve it against anything persisted in the iModel. A field naming an id that was never supplied resolves as if it named none: through the iModel's adopted FormatSet, then the schema presentation format.

Defined in

Last Updated: 02 October, 2026