[VB.Net] INV 2011 Add-In - How to release document object correctley

[RPdAnjou]

Hi all,

I've created a Inventor 2011 Add-In using VB.Net with VS2008.

This add-in does all kinds of things, but it will not release some documents.

Well I don't know that for shure but it looks like that.

We use Productstream Pro and when changing state of a document it says the document is in use while there are no documents visibly open in Inventor. This only occures when I use my add-in.

Exact steps:

• Load drawing document from PSP
• Perform action with add-in which gets a custom iProperty from the Part file used on the Drawing and fills the display name of the Drawing with it
• Save the drawing
• Close the drawing
• In PSP try to change state of the part file used on the drawing
• Get message from PSP stating the part is in use

In my code I've tried some things to prevent this behavior but non of them work.

I've tried:

• Setting unused objects to "= Nothing"
• Releasing objects using "Marshal.ReleaseComObject(obj)"
• Calling "m_inventorApplication.CloseAllUnreferencedDocs()" and "System.GC.Collect()" on the "m_appEvents_OnTerminateDocument" event.

What is going wrong?

[cean_au]

Maybe u need to wait for a few seconds after the drawing is closed.

[RPdAnjou]

This waiting period after the close would be the same with and without add-in.

I don't think the two actions on terminate document would take more then a few CPU cycles and I've certainly waited more then a few seconds.

Thanks anyway