topic Read unopened dwg file give fileaccesserr in .NET Forum

Read unopened dwg file give fileaccesserr

stefanveurink68AXD — Thu, 31 Mar 2022 18:59:10 GMT

Sorry for asking this, I'm sure i'm doing something stupid, but can't get it to work and can't find the answer. Tried several combinations, all give me a efileaccesserr when trying to read unopened dwg-file.

for example by:

Database db = new Database(false, true); using (db) {db.ReadDwgFile(path, FileOpenMode.OpenForReadAndAllShare, true, "");

or even with:

DocumentCollection acDocMgr=Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager; Document acNewDoc = acDocMgr.Add(path);

it immediatly gives me the error. it's the first lines in my code.

the "path"variable contains the path, as you might have expected.

Re: Read unopened dwg file give fileaccesserr

stefanveurink68AXD — Fri, 01 Apr 2022 10:13:26 GMT

By the way, should have mentioned I'm trying to read an dwg file that's not opened in autocad. I need to find out which layouts are in it. But to know that I first have to access it.

Tried to docklock it but then I first need to call it a document, what i'm trying to do with the second piece of code. But don't even get the chance to call it a document cause even there I get the eFileAccesErr. If the dwg file would be open doclock it would be easy, there's no trouble with that.

Re: Read unopened dwg file give fileaccesserr

_gile — Fri, 01 Apr 2022 11:54:35 GMT

Hi,

There's nothing wrong in the little snippet you posted. The issue is elsewhere, perhaps in the file itself or its path.

You can try with someting like this:

[CommandMethod("TEST")] public static void Test() { var ofd = new OpenFileDialog() { Filter = "Drawings (*.dwg)|*.dwg", Title = "File to get layouts from" }; if (ofd.ShowDialog() == DialogResult.OK) { var layoutNames = new List<string>(); using (var db = new Database(false, true)) { db.ReadDwgFile(ofd.FileName, FileOpenMode.OpenForReadAndAllShare, true, ""); using (var tr = db.TransactionManager.StartOpenCloseTransaction()) { var layouts = (DBDictionary)tr.GetObject(db.LayoutDictionaryId, OpenMode.ForRead); foreach (DBDictionaryEntry entry in layouts) { layoutNames.Add(entry.Key); } tr.Commit(); } } AcAp.ShowAlertDialog(string.Join("\n", layoutNames)); } }