안녕하세요 선생님 저번에 질문드렸엇던사람입니다.

컨트롤이 데이터 바인딩된 경우에는 DataGridView의 행 컬렉션에 프로그래밍 방식으로 행을 추가할 수 없습니다 라는오류가 발생하였는데
방법을 여기저기 찾아보고알아봤는데도 잘되지가않아서질문드립니다..



namespace MultiChatServer {
    public partial class ChatForm : Form {
        delegate void AppendTextDelegate(Control ctrl, string s);
        AppendTextDelegate _textAppender;
        Socket mainSock;
        IPAddress thisAddress;

        public ChatForm() {
            InitializeComponent();
            mainSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
            _textAppender = new AppendTextDelegate(AppendText);
            DataTable table = new DataTable();
            table.Columns.Add("F");
            table.Columns.Add("Number", typeof(int));
            table.Columns.Add("Data", typeof(float));
            table.Columns.Add("E");
       

            dataGridView1.DataSource = table;
        }//선언

        


        void AppendText(Control ctrl, string s) {

           
            if (ctrl.InvokeRequired) ctrl.Invoke(_textAppender, ctrl, s);
            else
            {
                string source = ctrl.Text;
                ctrl.Text = source + Environment.NewLine + s;

            }


           
            

        }

        void OnFormLoaded(object sender, EventArgs e) {
            IPHostEntry he = Dns.GetHostEntry(Dns.GetHostName());

       
            foreach (IPAddress addr in he.AddressList) {
                if (addr.AddressFamily == AddressFamily.InterNetwork) {
                    thisAddress = addr;
                    break;
                }
            }

          
            if (thisAddress == null)
      
                thisAddress = IPAddress.Loopback;

            txtAddress.Text = thisAddress.ToString();
        }
        void BeginStartServer(object sender, EventArgs e) {
            int port;
            if (!int.TryParse(txtPort.Text, out port)) {
                MsgBoxHelper.Error("포트 번호가 잘못 입력되었거나 입력되지 않았습니다.");
                txtPort.Focus();
                txtPort.SelectAll();
                return;
            }

            IPEndPoint serverEP = new IPEndPoint(thisAddress, port);
            mainSock.Bind(serverEP);
            mainSock.Listen(10);

            
            mainSock.BeginAccept(AcceptCallback, null);
        }

        List<Socket> connectedClients = new List<Socket>();
        void AcceptCallback(IAsyncResult ar) {
           
            Socket client = mainSock.EndAccept(ar);

           
            mainSock.BeginAccept(AcceptCallback, null);

            AsyncObject obj = new AsyncObject(4096);
            obj.WorkingSocket = client;

          
            connectedClients.Add(client);
            
            AppendText(txtHistory, string.Format("사용자 (@ {0})가 연결되었습니다.", client.RemoteEndPoint));

            
            client.BeginReceive(obj.Buffer, 0, 4096, 0, DataReceived, obj);
        }

        void DataReceived(IAsyncResult ar) {
            AsyncObject obj = (AsyncObject)ar.AsyncState;

           
            //예외처리 구문 (튕김방지)
            string text = Encoding.UTF8.GetString(obj.Buffer);

            
            string[] tokens = text.Split(' ');
            string ip = tokens[0];
            string msg = tokens[0];

           
            AppendText(txtHistory, string.Format("[받음]{0}: {1}", ip, msg));
            
            
            for (int i = connectedClients.Count - 1; i >= 0; i--) {
                Socket socket = connectedClients[i];
                if (socket != obj.WorkingSocket) {
                    try { socket.Send(obj.Buffer); }
                    catch {
                       
                        try { socket.Dispose(); } catch { }
                        connectedClients.RemoveAt(i);
                    }
                }
            }

            try
            {
                int received = obj.WorkingSocket.EndReceive(ar);
            }
            catch (Exception e)
            {
                string Message = "서버가 끊어졌습니다" + e.Message;
                MessageBox.Show(Message);
                return;
            }


            obj.ClearBuffer();

         
            obj.WorkingSocket.BeginReceive(obj.Buffer, 0, 4096, 0, DataReceived, obj);
        }

        void OnSendData(object sender, EventArgs e) {
            
            if (!mainSock.IsBound) {
                MsgBoxHelper.Warn("서버오프라인 상태");
                return;
            }
            
            
            string tts = txtTTS.Text.Trim();
            if (string.IsNullOrEmpty(tts)) {
                MsgBoxHelper.Warn("텍스트가 입력되지 않았습니다!");
                txtTTS.Focus();
                return;
            }
            
           
            byte[] bDts = Encoding.UTF8.GetBytes(thisAddress.ToString() + '\x01' + tts);

           
            for (int i = connectedClients.Count - 1; i >= 0; i--) {
                Socket socket = connectedClients[i];
                try { socket.Send(bDts); } catch {
                   
                    try { socket.Dispose(); } catch { }
                    connectedClients.RemoveAt(i);
                }
            }

            
            AppendText(txtHistory, string.Format("[보냄]{0}: {1}", thisAddress.ToString(), tts));
            txtTTS.Clear();
        }

        private void lblPort_Click(object sender, EventArgs e)
        {

        }

        private void txtHistory_TextChanged(object sender, EventArgs e)
        {
            string[] lines = txtHistory.Lines;
            string[] row0 = { "", "", "", "" };
            dataGridView1.Rows.Add(row0);
            dataGridView1.DataSource = lines;
        }

        private void lblAddress_Click(object sender, EventArgs e)
        {

            
        }

        private void tblMainLayout_Paint(object sender, PaintEventArgs e)
        {

        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }
    }
}

txthistory쪽에 클라이언트측에서 발신되는 채팅창에 수식을넣어줌으로써 자동으로 데이터그리드뷰로 이동하려고하는데 이와같은오류가 뜨는데 무엇이문제일까요...

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• [다음 글] 그리드뷰관련마지막질문하나드리겠습니다선생님
• [이전 글] C# dll 과 C++ 간 배열 전달. SafeArray

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