Renci.SshNet.SftpClient.OnDisconnecting C# (CSharp) Method

        protected override void OnDisconnecting()
        {
            base.OnDisconnecting();

            // disconnect, dispose and dereference the SFTP session since we create a new SFTP session
            // on each connect
            var sftpSession = _sftpSession;
            if (sftpSession != null)
            {
                _sftpSession = null;
                sftpSession.Dispose();
            }
        }