#region 顯示客戶端對話框
    /// <summary>
    /// MessageBox用來在客戶端彈出對話框。
    /// </summary>
    /// <param name="TxtMessage">對話框顯示內容</param>
    /// <returns></returns>
    public string MessageBox(string TxtMessage)
    {
        string str;
        str = "<script language=javascript>alert('" + TxtMessage + "')</script>";
        return str;
    }
    #endregion

    #region 創建文件夾
    /// <summary>
    /// 在客戶端制定的位置創建文件夾
    /// </summary>
    /// <param name="path"> 客戶端指定的路徑</param>
    /// <returns></returns>
    public bool CreateDirectory(string path)
    {
        try { 
        
        DirectoryInfo dt = new DirectoryInfo(path);
        if (!dt.Exists)//如果文件夾不存在
        {
            dt.Create();//創建
            return true;
        }
        else
        {
            return false;
        }
    }
    catch (Exception)
    {
        throw;
    }
    }
    #endregion

    #region 刪除文件夾
    /// <summary>
    ///DeleteDirectory 刪除指定路徑上的文件夾
    /// </summary>
    /// <param name="path">文件夾的路徑</param>
    /// <returns></returns>
    public bool DeleteDirectory(string path)
    {
        try
        {
        
        DirectoryInfo di = new DirectoryInfo(path);
        if (di.Exists)//如果文件存在
        {
            di.Delete();//刪除
            return true;
        }
        return false;
    }
    catch (Exception error)
    {
        throw error;
    }
    }
    #endregion

    #region 目錄檢索
    private long fileSize = 0;   //代表所有文件大小
    private int fileNumber = 0;   //代表該目錄下文件數量
   
    /// <summary>
    /// GetFile用來獲取指定文件夾下的文件大小，文件數量
    /// 最后返回一個hashtable
    /// </summary>
    /// <param name="di"> 傳過來一個DirectoryInfo實例 </param>
    /// <returns></returns>
    public System.Collections.Hashtable GetFile(string path)
    {
        System.Collections.Hashtable hs = new System.Collections.Hashtable();
        try {
            DirectoryInfo di = new DirectoryInfo(path);        
            FileInfo[] file = di.GetFiles();
            fileNumber += file.Length;
            foreach (FileInfo temp in file)
            {
                fileSize += temp.Length;
            }                     
           hs.Clear();
           hs.Add(fileNumber, fileSize);
           return hs;
      }
      catch (Exception)
      {
          throw;
      }

    }
    #endregion

    #region 寫文件
    /// <summary>
    /// WriteFile用來在指定位置創建一個文件
    /// </summary>
    /// <param name="path">是傳過來的路徑</param>
    /// <param name="text">是文件的內容</param>
    /// <returns></returns>
    public bool WriteFile(string path, string text)
    {
        try { 
        
        FileInfo f = new FileInfo(path);
        if (f.Exists)
        {
            using (StreamWriter sw = f.CreateText())
            {
                sw.WriteLine(text);
                return true;
            }
        }
        return false;
    }
    catch (Exception)
    {
        throw;
    }
    }

    #endregion

    #region 讀文件
    /// <summary>
    /// ReadFile用來讀取指定路徑下文件的內容
    /// </summary>
    /// <param name="path">用來指定路徑</param>
    /// <returns></returns>
    public string ReadFile(string path)
    {
        try { 
        
        FileInfo f = new FileInfo(path);
        if (f.Exists)
        {
            using (StreamReader sw = f.OpenText())
            {
                string s = sw.ReadLine();
                return s;
            }
        }
        return "";
    }
    catch (Exception)
    {
        throw;
    }
    }
    public string ReadFile()
    {
        
        try
        {

            FileInfo f = new FileInfo("");
            if (f.Exists)
            {
                using (StreamReader sw = f.OpenText())
                {
                    string s = sw.ReadLine();
                    return s;
                }
            }
            return "";
        }
        catch (Exception errror)
        {
            throw errror;
        }
    }

  #endregion
    #region 復制文件 
    /// <summary>
    /// 復制文件到指定的文件中
    /// </summary>
    /// <param name="path1">源文件路徑</param>
    /// <param name="path2">復制文件的路徑</param>
    /// <returns></returns>
    public bool CopyFile(String path1, string path2)
    {
        FileInfo fi = new FileInfo(path1);
        if (fi.Exists)
        {
            fi.CopyTo(path2);//將指定路徑文件夾中的文件拷貝到該文件夾中,并將該文件改名
            return true;
        }
        else
        {
            return false;
        }
    }
    #endregion
    #region 移動文件 
    public bool MoveFile(string path1,string path2) 
    {
        FileInfo fi = new FileInfo(path1);
        if (fi.Exists)
        {
            fi.MoveTo(path2);
            return true;
        }else
        {
            return false;
        }
    }
    #endregion