打开文件的问题，请高手指点

Diadem

一直对AutoCAD的插件运行环境没有搞清楚，希望高手讲解一下。

我的代码如下，编译之后用netload加载到CAD2008中，执行到打开文件的时候，老是报致命错误，然后CAD2008退出了。

        [CommandMethod("CloseXP", CommandFlags.Session)]
        public void StartWatch()
        {
            System.Windows.Forms.MessageBox.Show("测试开始", "开始监听！");

            try
            {
                IPEndPoint e = new IPEndPoint(IPAddress.Any, 1234);
                Udp = new UdpClient(e);
                Udp.EnableBroadcast = true;
                Udp.BeginReceive(new AsyncCallback(Udp_ER), Udp);
            }
            catch { }
        }

        [CommandMethod("CloseXP1", CommandFlags.Session)]
        public static void OpenXP()
        {
            try
            {
                //此处老是报错
                Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.Open(fileName);
            }
            catch (Autodesk.AutoCAD.Runtime.Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.Message, "打开文件出错！");
            }
        }

        protected static string fileName;
        [CommandMethod("CloseXP2",CommandFlags.Session)]
        public static void Udp_ER(IAsyncResult ar)
        {
            byte[] msg = null;
            IPEndPoint addr = null;
            try
            {
                msg = Udp.EndReceive(ar, ref addr);
                Udp.BeginReceive(new AsyncCallback(Udp_ER), null);
            }
            catch (System.Exception ex)
            {
            }
            if (msg != null && msg.Length > 0)
            {
                //接受其他程序发送过来的网络信息，信息为：文件路径信息，绝对正确。
                System.Windows.Forms.MessageBox.Show(Encoding.Default.GetString(msg), "收到信息！");
                fileName = Encoding.Default.GetString(msg);
                OpenXP();
            }
        }

雪山飞狐_lzh

文档加锁试试

Diadem

还没有打开文档，怎么加锁呢？