1.修正

01.FTP接続情報の保存

            if(saveFtpInfo.Checked)
            {
                Properties.Settings.Default.FtpIpAddress = FTPIpAddrTxt.Text;
                Properties.Settings.Default.FtpPort = FTPPortTxt.Text;
                Properties.Settings.Default.FtpUserId = FTPUserIdTxt.Text;
                Properties.Settings.Default.FtpUserPw = FTPUserPwTxt.Text;
                Properties.Settings.Default.FtpSaveInfo = true;
            }
            else
            {
                Properties.Settings.Default.FtpSaveInfo = false;
            }
            Properties.Settings.Default.Save();

02.フォルダを削除して空のフォルダを出力する

        // 전체파일 불러오기
        private List<DirectoryPath> getFTPList(string path)
        {
            string url = $@"FTP://{this.ipAddr}:{this.port}/{path}";
            DirectoryPath directoryPath = null;
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(url);
            request.Credentials = new NetworkCredential(userId, pwd);
            request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;

            using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
            {
                using(StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8))
                {
                    string strData = reader.ReadToEnd();
                    if(string.IsNullOrEmpty(strData))
                    {
                        directoryPath = new DirectoryPath();
                        directoryPath.Folder = path;
                        directoryPath.File = "EMPTY";
                        directoryPaths.Add(directoryPath);
                    }

                    string[] filename = strData.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);

                    foreach (string file in filename)
                    {
                        string[] fileDetailes = file.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);

                        directoryPath  = new DirectoryPath();

                        if (fileDetailes[0].Contains("d"))
                        {
                            getFTPList($"{path}{fileDetailes[8]}/");
                        }
                        else
                        {
                            directoryPath.Folder = path;
                            directoryPath.File = fileDetailes[8];
                            directoryPaths.Add(directoryPath);
                        }
                        //Console.WriteLine($"권한 : {fileDetailes[0]}");
                        //Console.WriteLine($"파일or폴더 : {fileDetailes[8]}");
                    }

                    return directoryPaths;
                }
            }
        }

        // menu item선택 이벤트
        private void NavBarItem_CLick(object sender, NavBarLinkEventArgs e)
        {
            NavBarItem item = (NavBarItem)sender;
            string Folder = $"/{item.Hint.Replace("/", "")}";
            string File = (string.IsNullOrEmpty(item.Caption) || item.Caption.Equals("EMPTY")) ? "" : $"/{item.Caption}";
            saveDirPath.Text = Folder;
            saveFilePath.Text = File;

            deleteFilePath.Text = $"{Folder}{File}";
        }

        // FTP 파일 삭제
        public bool DeleteFTPFile(string path)
        {
            try
            {
                string url = $@"FTP://{this.ipAddr}:{this.port}/{path}";

                FtpWebRequest request = (FtpWebRequest)WebRequest.Create(url);

                request.Credentials = new NetworkCredential(userId, pwd);
                if (path.Split('/').Count() > 2)
                    request.Method = WebRequestMethods.Ftp.DeleteFile;
                else
                    request.Method = WebRequestMethods.Ftp.RemoveDirectory ;

                using (request.GetResponse()) { }
            }
            catch
            {
                return false;
            }
            return true;
        }

03.アップロードパス

        // 업로드 버튼
        private void UploadBtn_Click(object sender, EventArgs e)
        {
            if(!result)
            {
                MessageBox.Show("FTP 연결을 먼저 진행해주세요.");
                return;
            }
            if(openFileTxt.Text.Equals("Click choise File") || string.IsNullOrEmpty(openFileTxt.Text))
            {
                MessageBox.Show("업로드할 파일을 선택해주세요.");
                return;
            }
            if (string.IsNullOrEmpty(uploadFolderTxt.Text) || !Regex.IsMatch(uploadFolderTxt.Text, @"(\/|\\){1}[a-zA-Z0-9ㄱ-ㅎ가-힣]+$")) 
            {
                MessageBox.Show("업로드할 위치를 입력해주세요.\n(/폴더, /폴더/폴더 형식으로 입력해주세요.)");
                return;
            }
            string fileName = openFileTxt.Text;
            string path = uploadFolderTxt.Text.Replace('\\','/'); // 업로드할 파일 저장할 FTP 경로 지정

            if (fTP.UpLoad(path, fileName) == false) // 파일 업로드
            {
                MessageBox.Show("FTP Upload 실패");
            }
            else
            {
                MessageBox.Show("FTP Upload시작");
                MessageBox.Show("FTP Upload완료");
                ResetMenuBar();
            }
            /*
            // 기준 경로의 모든 파일을 업로드 할 때 사용
            string localPath = @"C:\Users\jjh\Desktop\"; // 바탕화면 경로를 기준으로 둔다
            DirectoryInfo dirinfo = new DirectoryInfo(localPath);
            FileInfo[] infos = dirinfo.GetFiles();
            foreach (FileInfo info in infos)
            {
                if (Path.GetExtension(info.FullName) == ".txt") // txt 확장자 파일만 FTP 서버에 Upload
                {
                    if (fTP.UpLoad(path, info.FullName) == false) // 파일 업로드
                    {
                        MessageBox.Show("FTP Upload 실패");
                    }
                    else
                    {
                        MessageBox.Show("FTP Upload시작");
                        MessageBox.Show("FTP Upload완료");
                    }

                }
            }
            */
        }

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