论坛中看到的代码，留存备用 批量创建dwg文件

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OpenFileDialog ofd = new OpenFileDialog();             ofd.Title = "Select PointFiles to import";             ofd.CheckFileExists = true;             ofd.Multiselect = true;             if (ofd.ShowDialog() != System.Windows.Forms.DialogResult.OK)                 return;             dynamic prefs = Autodesk.AutoCAD.ApplicationServices.Application.Preferences;             dynamic files = prefs.Files;             string qnew = files.QNewTemplateFile;               foreach (string file in ofd.FileNames)             {                 string path = Path.GetDirectoryName(file);                 string filename = Path.GetFileNameWithoutExtension(file);                 string newname = path + "\\" + filename + ".dwg";                 using (Database db = new Database(false, true))                 {                     db.ReadDwgFile(qnew, FileOpenMode.OpenForReadAndWriteNoShare, false, "");                     using (Transaction tr = db.TransactionManager.StartTransaction())                     {                         CivilDocument civdoc = CivilDocument.GetCivilDocument(db);                         ObjectId styleId = civdoc.Styles.SurfaceStyles["TDG - Border Only"];                         ObjectId surfId = TinSurface.Create(db, filename);                         TinSurface surf = (TinSurface)surfId.GetObject(OpenMode.ForWrite);                         PointFileFormatCollection ptFileFormats = PointFileFormatCollection.GetPointFileFormats(db);                         PointFileFormat ptFormat = ptFileFormats["PNEZD (comma delimited)"];                         surf.StyleId = styleId;                         surf.PointFilesDefinition.AddPointFile(file, ptFormat);                         tr.Commit();                     }                     db.SaveAs(newname, DwgVersion.Current);                 }             }