System.Net.Mail.SmtpConnection.ConnectAndHandshakeAsyncResult.GetConnection C# (CSharp) 메소드

            internal void GetConnection()
            {
                if (NetEventSource.IsEnabled) NetEventSource.Enter(this);
                if (_connection._isConnected)
                {
                    throw new InvalidOperationException(SR.SmtpAlreadyConnected);
                }

                InitializeConnection();
            }