How to find Instances of a Class

[Viking]

Hello,
I want to assign the GUID of a classifier to an instance.

Code: [Select]

anInstance.ClassifierID = anElement.ElementGUID;I thought that both are strings and that it will work. It didn’t. The documentation says that ClassifierID is a Long an ElementGUID is a String. When I look into the database ea_guid and Classifier_guid look the same.
What’s wrong? V.

[Paolo F Cantoni]

Hello,
I want to assign the GUID of a classifier to an instance.

Code: [Select]

anInstance.ClassifierID = anElement.ElementGUID;I thought that both are strings and that it will work. It didn’t. The documentation says that ClassifierID is a Long an ElementGUID is a String. When I look into the database ea_guid and Classifier_guid look the same.
Anyway. So I tried this:

Code: [Select]

anInstance.ClassifierID = Int16.Parse(anElement.ElementGUID); and all other conversions. But that is not correct either. What’s wrong? V.

ClassifierID is NOT a GUID

Paolo

[Geert Bellekens]

It should be

Code: [Select]

anInstance.ClassifierID = anElement.ElementID
In EA most thing have both a regular ID (Long) as a guid (string)

The regular ID is (mostly) used to link things together, but they cannot be counted on to remain stable.
After say importing an xmi file, the ID's could be different. The ea_guid however will always stay the same.

In the database there is indeed also a field Classifier_guid, but you should not count on that. The real link is made using the Classifier column

Geert.

[Viking]

ClassifierID is NOT a GUID
Paolo

Yes, I am sorry, my question was nonsense