public static void SendOldData()
        {
            try
            {
                Socket      socket      = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IPHostEntry hostEntry   = Dns.GetHostEntry(ModuleKhaiBaoConst.IPMayGiamSatMain);
                IPAddress[] addressList = hostEntry.AddressList;
                IPAddress[] array       = addressList;
                IPAddress   address     = default(IPAddress);
                foreach (IPAddress iPAddress in array)
                {
                    if (iPAddress.AddressFamily == AddressFamily.InterNetwork)
                    {
                        address = iPAddress;
                        break;
                    }
                }
                IPEndPoint remoteEP  = new IPEndPoint(address, ModuleKhaiBaoConst.PortDuLieuCuMain);
                DataTable  dataTable = new DataTable();
                dataTable = CSDL.SelectXeQuaTram(ModuleKhaiBaoConst.StrConnectMain);
                socket.Connect(remoteEP);
                socket.ReceiveTimeout = 5000;
                IEnumerator enumerator = default(IEnumerator);
                try
                {
                    enumerator = dataTable.Rows.GetEnumerator();
                    while (enumerator.MoveNext())
                    {
                        DataRow   dataRow   = (DataRow)enumerator.Current;
                        XeQuaTram xeQuaTram = new XeQuaTram();
                        xeQuaTram.BienSo       = Conversions.ToString(dataRow["BienSo"]);
                        xeQuaTram.CaTruc       = RuntimeHelpers.GetObjectValue(dataRow["CaTruc"]);
                        xeQuaTram.GioQuaTram   = Conversions.ToString(dataRow["GioQuaTram"]);
                        xeQuaTram.LanXe        = Conversions.ToByte(dataRow["LanXe"]);
                        xeQuaTram.MSNV         = Conversions.ToString(dataRow["MSNV"]);
                        xeQuaTram.NgayQuaTram  = Conversions.ToString(dataRow["NgayQuaTram"]);
                        xeQuaTram.Phi          = Conversions.ToLong(dataRow["Phi"]);
                        xeQuaTram.PLVe         = Conversions.ToByte(dataRow["PLVe"]);
                        xeQuaTram.PLXeSau      = Conversions.ToByte(dataRow["PLXeSau"]);
                        xeQuaTram.PLXeTruoc    = Conversions.ToByte(dataRow["PLXeTruoc"]);
                        xeQuaTram.PTTT         = Conversions.ToByte(dataRow["PTTT"]);
                        xeQuaTram.SoVe         = Conversions.ToString(dataRow["SoVe"]);
                        xeQuaTram.TenHinhXe    = Conversions.ToString(dataRow["TenHinhXe"]);
                        xeQuaTram.BSXeThangQui = Conversions.ToString(dataRow["BSXeThangQui"]);
                        if (xeQuaTram.LanXe <= 0)
                        {
                            CSDL.DeleteXeQuaTram(ModuleKhaiBaoConst.StrConnectMain, xeQuaTram.TenHinhXe);
                        }
                        else
                        {
                            byte[] bytes = Encoding.ASCII.GetBytes(xeQuaTram.ToString());
                            socket.Send(bytes, bytes.Length, SocketFlags.None);
                            byte[] array2 = new byte[31];
                            int    num    = 0;
                            num = socket.Receive(array2, array2.Length, SocketFlags.None);
                            string @string = Encoding.ASCII.GetString(array2, 0, num);
                            CSDL.DeleteXeQuaTram(ModuleKhaiBaoConst.StrConnectMain, @string);
                        }
                    }
                }
                finally
                {
                    if (enumerator is IDisposable)
                    {
                        (enumerator as IDisposable).Dispose();
                    }
                }
                goto end_IL_0000;
IL_028c:
                end_IL_0000 :;
            }
            catch (Exception ex)
            {
                ProjectData.SetProjectError(ex);
                Exception ex2 = ex;
                ProjectData.ClearProjectError();
            }
        }