public override int ServerPort { get; set; }

Public Overrides Property ServerPort As Integer
	Get
	Set

public:
virtual property int ServerPort {
	int get () override;
	void set (int value) override;
}

              ExFTPConnection ftp = new ExFTPConnection();
              ftp.Protocol = FileTransferProtocol.FTP;
              ftp.ServerAddress = "my-server-name";
              ftp.ServerPort = 21;
              ftp.UserName = "my-username";
              ftp.Password = "my-password";
              ftp.Connect();
              ftp.Close();