C#实现在CAD图纸中插入另一个DWG图块的代码

PromptPointResult ppr = ed.GetPoint("请选择插入点："); 

Point3d pt = ppr.Value; 

utility.WriteToEditor(pt.ToString()); 

 PIDBlock pidBlock = new PIDBlock();//自己定义的图块类，保存图块的路径和名称 

pidBlock.Name = "sample"; 

pidBlock.Path = blockPath + "b_sample.dwg";using (Database blkDb = new Database(false, true)) 

{ 

    //read drawing 

    blkDb.ReadDwgFile(pidBlock.Path, System.IO.FileShare.Read, true, null); 

    blkDb.CloseInput(true); 

    using (DocumentLock docLock = doc.LockDocument())//多文档要先这样，否则报至命错误 

    { 

        using (Transaction t = doc.TransactionManager.StartTransaction()) 

        { 

            //insert it as a new block 

            ObjectId idBTR = doc.Database.Insert(pidBlock.Name, blkDb, false); 

            //create a ref to the block 

            BlockTable bt = (BlockTable)t.GetObject(doc.Database.BlockTableId, OpenMode.ForRead); 

            BlockTableRecord btr = (BlockTableRecord)t.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite); 

            using (BlockReference bref = new BlockReference(pt, idBTR)) 

            { 

                btr.AppendEntity(bref); 

                t.AddNewlyCreatedDBObject(bref, true); 

            } 

            t.Commit(); 

        } 

    } 

}