mRemoteNG.Connection.Protocol.ICA.ProtocolICA.SetCredentials C# (CSharp) Method

        private void SetCredentials()
        {
            try
            {
                if (((int)Force & (int)ConnectionInfo.Force.NoCredentials) == (int)ConnectionInfo.Force.NoCredentials)
                {
                    return ;
                }

                string _user = _Info.Username;
                string _pass = _Info.Password;
                string _dom = _Info.Domain;

                if (string.IsNullOrEmpty(_user))
                {
                    if (Settings.Default.EmptyCredentials == "windows")
                    {
                        _ICAClient.Username = Environment.UserName;
                    }
                    else if (Settings.Default.EmptyCredentials == "custom")
                    {
                        _ICAClient.Username = Settings.Default.DefaultUsername;
                    }
                }
                else
                {
                    _ICAClient.Username = _user;
                }

                if (string.IsNullOrEmpty(_pass))
                {
                    if (Settings.Default.EmptyCredentials == "custom")
                    {
                        if (Settings.Default.DefaultPassword != "")
                        {
                            var cryptographyProvider = new LegacyRijndaelCryptographyProvider();
                            _ICAClient.SetProp("ClearPassword", cryptographyProvider.Decrypt(Settings.Default.DefaultPassword, Runtime.EncryptionKey));
                        }
                    }
                }
                else
                {
                    _ICAClient.SetProp("ClearPassword", _pass);
                }

                if (string.IsNullOrEmpty(_dom))
                {
                    if (Settings.Default.EmptyCredentials == "windows")
                    {
                        _ICAClient.Domain = Environment.UserDomainName;
                    }
                    else if (Settings.Default.EmptyCredentials == "custom")
                    {
                        _ICAClient.Domain = Settings.Default.DefaultDomain;
                    }
                }
                else
                {
                    _ICAClient.Domain = _dom;
                }
            }
            catch (Exception ex)
            {
                Runtime.MessageCollector.AddMessage(Messages.MessageClass.ErrorMsg, Language.strIcaSetCredentialsFailed + Environment.NewLine + ex.Message, true);
            }
        }