Topic: Determine XrefStatus.Unreferenced

[TJK44]

Has anyone else had issues with the XRefStatus either for a BlockTableRecord or XRefGraphNode returning resolved even if the status is Unreferenced in the XRef Manager window? Is it possible to tell if an XRef is Unreferenced, I want to loop through the XRefGraph ignoring Unreferenced Xrefs.

Thanks,

-Ted

[dgorsman]

Unreferenced, or unloaded?

[TJK44]

Unreferenced, this happens when they delete an xref in the drawing and then the status changes to unreferenced. Looping through the xref graph these unreferenced xrefs give a status of resolved?

[Jeff H]

Are you using Database.ResolveXrefs Method before obtaining the XrefGraph?

[TJK44]

I just tried ResolveXRefs but same result, XRefStatus is still Resolved if it has a status of Unreferenced in xref manager.

I checked the XrefStatus of the XrefGraphNode as well as the BlockTableRecord for the xref and both values are resolved for unreferenced xrefs.

[owenwengerd]

Unresolved/Resolved and Referenced/Unreferenced are completely unrelated properties of an xref, so perhaps it would help to explain why you think there should be a connection.

[TJK44]

I want to be able to determine if the xref doesn't exist in the drawing anymore, but it may still reside in the xrefgraph. I thought looping through the xrefgraph and checking the xrefstatus would get me what I need.

Confusing because the xref manager status says unreferenced, but when debugging, XrefGraphNode.XrefStatus is always resolved.

[owenwengerd]

Confusing because the xref manager status says unreferenced, but when debugging, XrefGraphNode.XrefStatus is always resolved.

Resolved means the file is found; it has nothing to do with whether it is referenced in the drawing file. You should be able to call the xref's BlockTableRecord::GetBlockReferenceIds() to find out how many references there are.

[TJK44]

Thanks Owen, that worked.

I first purge the blocks and then check if btr.GetBlockReferenceIDs(True,True).Count > 0