다중 업로드 파일 클래스를 맹글어 보자

using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Web;
using System.Configuration;
using System.IO;

/// <summary>
/// UploadContentsManage의 요약 설명입니다.
/// </summary>
///

namespace ddarang.Upload
{
    public class UploadContentsManage
    {
        //업로드 경로 web.config 가져오기
        string ROOT_PATH = ConfigurationManager.AppSettings["uploadpath"];
        string SAVE_PATH;
        /// <summary>
        /// 업로드 상세 경로 설정
        /// </summary>
        /// <param name="path"></param>
        public UploadContentsManage(UploadPath path)
        {
            switch (path)
            {
                case UploadPath.bbsimg:
                    SAVE_PATH = ROOT_PATH + "/";// "/bbsImg/";
                    break;
                case UploadPath.bbsattach:
                    SAVE_PATH = ROOT_PATH + "/bbsAttach/";
                    break;
                default:
                    SAVE_PATH = ROOT_PATH + "/";
                    break;
            }
        }
        /// <summary>
        /// 다중 업로드 파일이름 저장
        /// </summary>
        /// <param name="uploadFiles"></param>
        /// <returns></returns>
        public Dictionary<string, string> FileSave(HttpFileCollection uploadFiles)
        {
            Dictionary<string, string> savedFiles = new Dictionary<string, string>();

            for (int i = 0; i < uploadFiles.Count; i++)
            {
                HttpPostedFile uf = uploadFiles[i];

                if (uf.ContentLength > 0)
                {
                    string savedFileName = string.Empty;

                    try
                    {
                        //경로를 포함한 파일 이름
                        string strFileFullName = uf.FileName;

                        //파일의 이름을 구함
                        string m_FileName = strFileFullName.Substring(strFileFullName.LastIndexOf("\\") + 1);

                        //확장자
                        string fext = strFileFullName.Substring(strFileFullName.LastIndexOf(@".") + 1).ToLower();

                        //파일명 날짜로 변경
                        savedFileName = uploadFiles.Keys[i].Substring(uploadFiles.Keys[i].LastIndexOf(@"$")+1) + DateTime.Now.Ticks.ToString() + "." + fext;

                        uf.SaveAs(SAVE_PATH + savedFileName);
                        savedFiles.Add(uploadFiles.Keys[i].Substring(uploadFiles.Keys[i].LastIndexOf(@"$") + 1), savedFileName);
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("파일 저장 에러 - " + savedFileName, ex);
                    }
                }
            }
           
            return savedFiles;
        }

        /// <summary>
        /// 업로드 파일 삭제
        /// </summary>
        /// <param name="path"></param>
        /// <param name="removeFiles"></param>
        public static void FileRemove(UploadPath path, ArrayList removeFiles)
        {
            string root_path = ConfigurationManager.AppSettings["uploadpath"];
            string save_path = string.Empty;

            switch (path)
            {
                case UploadPath.bbsimg:
                    save_path = root_path + "/bbsImg/";
                    break;
                case UploadPath.bbsattach:
                    save_path = root_path + "/bbsAttach/";
                    break;
                default:
                    save_path = root_path + "/";
                    break;
            }
            for (int i = 0; i < removeFiles.Count; i++)
            {
                FileInfo file = new FileInfo(string.Concat(save_path, removeFiles[i].ToString()));
                if (file.Exists)
                {
                    try
                    {
                        file.Delete();
                    }
                    catch (Exception ex)
                    {
                        throw new Exception("파일 삭제 에러 - " + file.FullName, ex);
                    }
                }
            }
        }

       

        /// <summary>
        /// 파일을 다운로드한다.
        /// </summary>
        /// <param name="page"></param>
        /// <param name="gubun"></param>
        /// <param name="serverSavedFileName"></param>
        public static string DownloadFilePath(System.Web.UI.Page page, UploadPath path, string serverSavedFileName)
        {
            string root_path = ConfigurationManager.AppSettings["uploadUrl"];
            string save_path = string.Empty;

            switch (path)
            {
                case UploadPath.bbsimg:
                    save_path = root_path + "/bbsImg/";
                    break;
                case UploadPath.bbsattach:
                    save_path = root_path + "/bbsAttach/";
                    break;
                default:
                    save_path = root_path + "/";
                    break;
            }
            return string.Concat(save_path, serverSavedFileName).Replace("\\", "/");
          
        }
    }

    /// <summary>
    /// 업로드 경로 구분
    /// </summary>
    public enum UploadPath
    {
        bbsimg,
        bbsattach
    }
}

===파일을 업로드 할때===================================================

private Dictionary<string, string> Upload()
{
 UploadContentsManage ucm = new UploadContentsManage(UploadPath.bbsimg);
 Dictionary<string, string> savedFiles = ucm.FileSave(Request.Files);

 return savedFiles;
}

//저장 버튼 클릭

protected void btnAdd_Click(object sender, EventArgs e)
{
 Dictionary<string, string> attfiles = Upload();

 string fname = attfiles["photo"].ToString();
 
 Response.Write("업로드된 파일명 : "+ fname);
}