topic Re: Write data to the NOD before document closes? in .NET Forum

Write data to the NOD before document closes?

nshupeFMPE3 — Mon, 14 Feb 2022 22:45:12 GMT

I'm trying to find what event would be the best to react to in in order to write data to the NOD before the document closes. I've tried reacting to

Application.DocumentManager.DocumentDestroyed += new DocumentDestroyedEventHandler(docColDocDestroyed)

but get an error when trying to create a transaction.

And when I try to react to

Document.BeginDocumentClose

I get an eLockedViolation. The violation comes from an external assembly that I cant change, and I need the assembly for backwards compatibility (I'm only doing this part for backwards compatibility.)

Any help would be greatly appreciated!

Re: Write data to the NOD before document closes?

_gile — Tue, 15 Feb 2022 06:37:27 GMT

Hi,

Try to handle the DocumentToBeDestroyed event and, in the event handler, use an OpenCloseTransaction instead of a standard Transaction.

Re: Write data to the NOD before document closes?

nshupeFMPE3 — Tue, 15 Feb 2022 15:18:27 GMT

that appears to have worked, thank you Sir!

Re: Write data to the NOD before document closes?

nshupeFMPE3 — Mon, 28 Feb 2022 18:33:28 GMT

it appears that the Transaction completes without failing, but that the changes are not saved to the NOD as the changes do not appear when opening the file again.

Re: Write data to the NOD before document closes?

_gile — Mon, 28 Feb 2022 20:01:26 GMT

You have to save the document.

This works for me:

private void Docs_DocumentToBeDestroyed(object sender, DocumentCollectionEventArgs e) { var db = e.Document.Database; using (var tr = db.TransactionManager.StartOpenCloseTransaction()) { var nod = (DBDictionary)tr.GetObject(db.NamedObjectsDictionaryId, OpenMode.ForRead); DBDictionary dict; if (nod.Contains("FOO")) { dict = (DBDictionary)tr.GetObject(nod.GetAt("FOO"), OpenMode.ForRead); } else { dict = new DBDictionary(); nod.UpgradeOpen(); nod.SetAt("FOO", dict); tr.AddNewlyCreatedDBObject(dict, true); } Xrecord xrec; if (dict.Contains("Bar")) { xrec = (Xrecord)tr.GetObject(dict.GetAt("Bar"), OpenMode.ForWrite); } else { xrec = new Xrecord(); if (!dict.IsWriteEnabled) dict.UpgradeOpen(); dict.SetAt("Bar", xrec); tr.AddNewlyCreatedDBObject(xrec, true); } xrec.Data = new ResultBuffer(new TypedValue(1, "baz")); tr.Commit(); } dynamic acadDoc = e.Document.GetAcadDocument(); acadDoc.Save(); }

Re: Write data to the NOD before document closes?

SRSDS — Fri, 09 Sep 2022 20:52:33 GMT

Does this save the document on closing regardless of whether or not the user has chosen not to?

Your solution here is another which doesn't. https://forums.autodesk.com/t5/net/how-to-catch-save-quit-document/m-p/8321676#M60415