常見檔案、目錄操作

• 不錯的整理：http://silenceangelwaitingfor.spaces.live.com/blog/cns!47F284FC052C0DE0!442.entry
• 檢驗帳號是否對某個檔案有NTFS存取權限:
  這個問題似乎沒有好的解答
  https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1851064&SiteID=1
  
  也許從這篇可以得到解答: http://www.codeproject.com/csharp/accessctrl3.asp?df=100&forumid=180919&exp=0&select=1350552#Accesscheck
• 存取檔案、目錄ACL
  FileSecurity fSecurity = File.GetAccessControl(@"c:\temp");
  fSecurity.AddAccessRule(
  new FileSystemAccessRule(
  "DomainA/UserB",
  FileSystemRights.AppendData | FileSystemRights.CreateFiles,
  AccessControlType.Allow)
  );
  File.SetAccessControl(@"c:\temp", fSecurity);
  
• 設定檔案成ReadOnly
  FileInfo f = new FileInfo(@"c:\temp\1.txt");
  f.Attributes |= FileAttributes.ReadOnly;