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 程式師世界 >> 編程語言 >> .NET網頁編程 >> ASP.NET >> 關於ASP.NET >> Asp.net對文件夾和文件的操作類

Asp.net對文件夾和文件的操作類

編輯:關於ASP.NET

using System;
using System.IO;
using System.Web;

namespace SEC
{
  /**//// <summary>
  /// 對文件和文件夾的操作類
  /// </summary>
  public class FileControl
  {
    public FileControl()
    {
    }
    /**//// <summary>
    /// 在根目錄下創建文件夾
    /// </summary>
    /// <param name="FolderPath">要創建的文件路徑</param>
    public void CreateFolder(string FolderPathName)
    {
      if(FolderPathName.Trim().Length>0)
      {
        try
        {
          string CreatePath = System.Web.HttpContext.Current.Server.MapPath

("../../../Images/"+FolderPathName).ToString();
          if(!Directory.Exists(CreatePath))
          {
            Directory.CreateDirectory(CreatePath);
          }
        }
        catch
        {
          throw;
        }
      }
    }

    /**//// <summary>
    /// 刪除一個文件夾下面的字文件夾和文件
    /// </summary>
    /// <param name="FolderPathName"></param>
    public void DeleteChildFolder(string FolderPathName)
    {
      if(FolderPathName.Trim().Length>0)
      {
        try
        {
          string CreatePath = System.Web.HttpContext.Current.Server.MapPath

(FolderPathName).ToString();
          if(Directory.Exists(CreatePath))
          {
            Directory.Delete(CreatePath,true);
          }
        }
        catch
        {
          throw;
        }
      }
    }

    /**//// <summary>
    /// 刪除一個文件
    /// </summary>
    /// <param name="FilePathName"></param>
    public void DeleteFile(string FilePathName)
    {
      try
      {
        FileInfo DeleFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath

(FilePathName).ToString());
        DeleFile.Delete();
      }
      catch
      {
      }
    }
    public void CreateFile(string FilePathName)
    {
      try
      {
        //創建文件夾
        string[] strPath= FilePathName.Split('/');
        CreateFolder(FilePathName.Replace("/" + strPath[strPath.Length-1].ToString(),"")); //創建文件


        FileInfo CreateFile =new FileInfo(System.Web.HttpContext.Current.Server.MapPath

(FilePathName).ToString());     //創建文件
        if(!CreateFile.Exists)
        {
          FileStream FS=CreateFile.Create();
          FS.Close();
        }
      }
      catch
      {
      }
    }
    /**//// <summary>
    /// 刪除整個文件夾及其字文件夾和文件
    /// </summary>
    /// <param name="FolderPathName"></param>
    public void DeleParentFolder(string FolderPathName)
    {
      try
      {
        DirectoryInfo DelFolder = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath

(FolderPathName).ToString());
        if(DelFolder.Exists)
        {
          DelFolder.Delete();
        }
      }
      catch
      {
      }
    }
    /**//// <summary>
    /// 在文件裡追加內容
    /// </summary>
    /// <param name="FilePathName"></param>
    public void ReWriteReadinnerText(string FilePathName,string WriteWord)
    {
      try
      {
        //建立文件夾和文件
        //CreateFolder(FilePathName);
        CreateFile(FilePathName);
        //得到原來文件的內容
        FileStream FileRead=new FileStream(System.Web.HttpContext.Current.Server.MapPath

(FilePathName).ToString(),FileMode.Open,FileAccess.ReadWrite);
        StreamReader FileReadWord=new StreamReader(FileRead,System.Text.Encoding.Default);
        string OldString = FileReadWord.ReadToEnd().ToString();
        OldString = OldString + WriteWord;
        //把新的內容重新寫入
        StreamWriter FileWrite=new StreamWriter(FileRead,System.Text.Encoding.Default);
        FileWrite.Write(WriteWord);
        //關閉
        FileWrite.Close();
        FileReadWord.Close();
        FileRead.Close();
      }
      catch
      {
        //  throw;
      }
    }

    /**//// <summary>
    /// 在文件裡追加內容
    /// </summary>
    /// <param name="FilePathName"></param>
    public string ReaderFileData(string FilePathName)
    {
      try
      {
        FileStream FileRead=new FileStream(System.Web.HttpContext.Current.Server.MapPath

(FilePathName).ToString(),FileMode.Open,FileAccess.Read);
        StreamReader FileReadWord=new StreamReader(FileRead,System.Text.Encoding.Default);
        string TxtString = FileReadWord.ReadToEnd().ToString();
        //關閉
        FileReadWord.Close();
        FileRead.Close();
        return TxtString;
      }
      catch
      {
        throw;
      }
    }
    /**//// <summary>
    /// 讀取文件夾的文件
    /// </summary>
    /// <param name="FilePathName"></param>
    /// <returns></returns>
    public DirectoryInfo checkValidSessionPath(string FilePathName)
    {
      try
      {
        DirectoryInfo MainDir = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath

(FilePathName));
        return MainDir;
      }
      catch
      {
        throw;
      }
    }
  }
}

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