块定义从一个图形传到当前图形

 public void btb()
        {
            //先用Wblock 将指定文件内容传到临时db
            //再用Insert传到当前图形

            Document doc = Application.DocumentManager.MdiActiveDocument;
            Database db = doc.Database;
            Database databaseFromFile = Getdb("c:\\blockbtr.dwg", System.IO.FileShare.Read, true);
            using (Transaction tr = databaseFromFile.TransactionManager.StartTransaction())
            {
                BlockTable bt; BlockTableRecord btr;
                ArxHlb.CADEntAdd.GetBtBtr(databaseFromFile, tr, out bt, out btr, OpenMode.ForRead);

                foreach (ObjectId bbtrId in bt)
                {
                    BlockTableRecord bbtr = tr.GetObject(bbtrId, OpenMode.ForRead) as BlockTableRecord;
                    if (!(bbtr.Name.ToUpper().Contains("MODEL_SPACE") || bbtr.Name.ToUpper().Contains("PAPER_SPACE")))
                    {
                        Database dbTemp = databaseFromFile.Wblock(bbtrId);

                        db.Insert(bbtr.Name, dbTemp, true);
                    }
                }
            }
        }