This is the part I don't understand. If it's because of the Guid, it's because you'll have to re-specify the Guid. If I need to fetch information via Guid, but there is no command to get it back, then I can understand. This article was translated from translate.google.com.
I know what you said is true. thank you. Have a nice day API_LabelType parent When creating new Labels, set this to APINULLGuid to create an independent Label; or set this to the GUID of the owner element (a labelable element) to create an associative Label.
When getting or changing a Label, this member will be filled with the GUID of the owner element, or APINULLGuid, if the Label is independent. It is not allowed to make an existing associative Label independent, or make an existing independent Label associative.