Topic: FYI... SaveAs in 2010 gotcha

[T.Willey]

It appears that there is a problem in the Acad .Net assemblies that doesn't work all the time when trying to use the SaveAs method on a Database.   The problem is with calling the method like

Db.SaveAs( path, DwgVersion.Current );

To fix the issue I had, I had to call it like

Db.SaveAs( path, true, DwgVersion.Current, Db.SecurityParameters );

Problem was confirmed by this page, which also supplied the solution:
[ http://www.private.peterlink.ru/poleshchuk/cad/2009/Bug2apie.htm ]

[WILL HATCH]

Thanks Tim, this came in handy today. I have a simple wrapper I enjoy using for side database interactions. It worked fine when I was the only one in the file system, but my old hack is just a breeding ground for race conditions to thwart the process if someone else happened to open the file before I saved. I used to just open the file for read so that the later db.SaveAs(db.FullName, db.OriginalFileVersion) wouldn't crash on filesharing violation

Code - C#: [Select]

1.         public static void PerformActionOnDatabase(this Action<Database> databaseaction, string dwgpath, FileOpenMode fileOpenMode = FileOpenMode.OpenForReadAndAllShare)
2.         {
3.             using (var db = new Database(false, true))
4.             {
5.                 db.ReadDwgFile(dwgpath, fileOpenMode, true, null);
6.                 databaseaction(db);
7.             }
8.         }

Code - C#: [Select]

1.             var dbAction = new Action<Database>((db) =>
2.             {
3.                 using (var tr = db.TransactionManager.StartTransaction())
4.                 {
5.                    
6.                     tr.Commit();
7.                 }
8.                 db.CloseInput(true);
9.                 db.SaveAs(db.Filename, db.SecurityParameters);
10.             });
11.             dbAction.PerformActionOnDatabase(dwgpath, FileOpenMode.OpenForReadAndWriteNoShare);