for (int i = 0; i < clientList.Count - 1; i++)
{
                            
 Socket emp = (Socket)clientName[clientList[i].ToString()];
 string sendStr = "Start#Type=AddClientID#ServerIP=#MyName=#End";
 emp.Send(Encoding.UTF8.GetBytes(sendStr));
 emp.Close();
 emp = null;

 }

执行后出现错误，指向红色的句子 说提示“无法访问已释放的对象。对象名:“””。clientList是个Arraylist类型的，clientName是hashtable类型的请帮忙解答一下。谢谢了！

[ 本帖最后由 mipeng 于 2009-10-1 18:11 编辑 ]

clientName是hashtable类型的？？？没明白

private ArrayList clientList = new ArrayList();
 private Hashtable clientName = new Hashtable();                    
...
...
                    case "ClientConnect":
                    {
                        clientName.Add(recCmd.MyName, temp);
                        clientList.Add(recCmd.MyName);
                        clientListBox.Items.Add(recCmd.MyName.ToString());
                        Socket tp = (Socket)clientName[recCmd.MyName];
                        tp.Send(Encoding.UTF8.GetBytes("OK"));
                        tp.Close();
                        tp = null;
                        
                        for (int i = 0; i < clientList.Count - 1; i++)
                        {
                            Socket emp = (Socket)clientName[clientList[i].ToString()];
                            string sendStr = "Start#Type=AddClientID#ServerIP=#MyName=#OtherName=#End";
                            emp.Send(Encoding.UTF8.GetBytes(sendStr));
                            emp.Close();
                            emp = null;
                        }
                        break;
                    }

case里的ok发送成功了，可是下面的for循环里就发送不了。说提示“无法访问已释放的对象。对象名:“””

Socket emp = (Socket)clientName[clientList[i].ToString()];
这样行吗，跟踪看看emp里面是什么了
是不是还是空的

出错时显示，emp不是空的