AsterixDisplayAnalyser.FrmReplayForm.SetInputConnectionToReplayParameters C# (CSharp) Метод

        private void SetInputConnectionToReplayParameters()
        {
            bool Input_Validated = true;
            IPAddress IP = IPAddress.Any;
            IPAddress Multicast = IPAddress.Any;
            int PortNumber = 2222;

            // First make sure that all boxes are filled out
            if ((!string.IsNullOrEmpty(this.txtboxIPAddress.Text)) &&
                 (!string.IsNullOrEmpty(this.comboBoxNetworkInterface.Text)) &&
                (!string.IsNullOrEmpty(this.textboxPort.Text)))
            {

                // Validate that a valid IP address is entered
                if ((IPAddress.TryParse(this.txtboxIPAddress.Text, out Multicast) != true) || (IPAddress.TryParse(this.comboBoxNetworkInterface.Text, out IP) != true))
                {
                    MessageBox.Show("Not a valid IP address");
                    Input_Validated = false;
                }
                else // Add a check that this is a valid multicast address
                {
                    UdpClient TempSock;
                    TempSock = new UdpClient(2222);// Port does not matter
                    // Open up a new socket with the net IP address and port number
                    try
                    {
                        TempSock.JoinMulticastGroup(Multicast, 50); // 50 is TTL value
                    }
                    catch
                    {
                        MessageBox.Show("Not valid Multicast address (has to be in range 224.0.0.0 to 239.255.255.255");
                        Input_Validated = false;
                    }
                    if (TempSock != null)
                        TempSock.Close();
                }

                if (int.TryParse(this.textboxPort.Text, out PortNumber) && (PortNumber >= 1 && PortNumber <= 65535))
                {
                }
                else
                {
                    MessageBox.Show("Invalid Port number");
                    Input_Validated = false;
                }
            }
            else
            {
                MessageBox.Show("Please fill out all data fileds");
                Input_Validated = false;
            }

            // Input has been validated, so lets connect to the provided multicast address and interface
            if (Input_Validated == true)
            {
                // Syntatically all the provided data is valid, so save it off so it persists over the sessions
                Properties.Settings.Default.ReplayMulticast = this.txtboxIPAddress.Text;
                Properties.Settings.Default.ReplayPort = this.textboxPort.Text;
                Properties.Settings.Default.Save();

                SharedData.ConnName = "Loc Replay";
                SharedData.CurrentInterfaceIPAddress = this.comboBoxNetworkInterface.Text;
                SharedData.CurrentMulticastAddress = this.txtboxIPAddress.Text;
                SharedData.Current_Port = int.Parse(this.textboxPort.Text);

                if (ASTERIX.ReinitializeSocket() != true)
                {
                    SharedData.ResetConnectionParameters();
                }
            }
        }