SubOccurrences property throw COMException

[FRFR1426]

When trying to loop on sub occurrences, on some assemblies, the property SubOccurences thow a COMException:

System.Runtime.InteropServices.COMException (0x80004005): Erreur non spécifiée (Exception de HRESULT : 0x80004005 (E_FAIL))
   à System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
   à Inventor.ComponentOccurrence.get_SubOccurrences()

What can cause this type of error? 

[YuhanZhang]

Can you upload the data that can reproduce this problem? And which Inventor version you are using?

Please don't upload confidential data.

[FRFR1426]

The problem occurs on Inventor Suite 2011 SP2 (Build 150309200, 309). I will upload some data, but via ADN DevHelp because the data is confidential (when it will work, which is not the case right now. I can not connect )

[nagwani · Accepted solution]

Hi There,

I had similar issue once, and I found that if your are not in Master LOD and some of the occurrences have been suppresses then getting SubOccurrences from suppressed Occurrence would fail.

Regards,

-Ishwar N

[FRFR1426]

Found it! I have to test the property Suppressed before accessing to the property SubOccurences.