Share Email Facebook Twitter LinkedIn MateConstraintProxy.OccurrenceOne Property Parent Object: MateConstraintProxy Description Property that returns the first of the two objects this constraint is between. Syntax MateConstraintProxy.OccurrenceOne() As ComponentOccurrence Property Value This is a read only property whose value is a ComponentOccurrence. Version Introduced in version 11 © Copyright 2025 Autodesk, Inc. Comment on this page.