OdTfPropertiesContainer::unique (const OdString&)

Retrieves the uniqueness flag value for a property specified with its name. The uniqueness flag value is equal to true if the property object is unique in the container; otherwise the flag value is equal to false.

OdTfPropertiesContainer::unique (const OdString&, const OdTfVariant::Type)

Retrieves the uniqueness flag value for a property specified with its name and data type. The uniqueness flag value is equal to true if the property object is unique in the container; otherwise the flag value is equal to false.