C#实现安全删除文件目录的方法

本文实例讲述了c#实现安全删除文件目录的方法。分享给大家供大家参考。具体分析如下：

1. 创建文件夹 (简单，没多考虑)

2. 删除所建文件夹：为防止删除过程中有其他进程引用该文件夹中文件，增加了对此意外情况的考虑。

在本例中，若删除过程中被其他进程引用，等待并循环5次尝试再次删除操作。长时间无法被删除，则删除文件目录失败

using system;
using system.io;
namespace retry
{
 class program
 {
 static void main(string[] args)
 {
  directoryinfo dirinfo = directory.createdirectory(@"c:\testdir");
  string foldername = system.environment.getfolderpath(environment.specialfolder.applicationdata) + "\\testdir";
  if (!directory.exists(foldername))
  {
  directory.createdirectory(foldername);
  console.writeline("{0} created! ",foldername);
  }
  int retrytimes = 1;
  do
  {
  if (directory.exists(foldername))
  {
   try
   {
   console.writeline("tring to delete file the {0} time.",retrytimes);
   directory.delete(foldername, true);
   console.writeline("deleting file successfully.");
   break;
   }
   catch (ioexception ex)
   {
   console.writeline("exception! ", ex.tostring());
   console.writeline("sleep 5 seconds and retry.");
   system.threading.thread.sleep(5000);
   retrytimes++;
   }
  }
  else
  {
   console.writeline("delete folder successfully");
   break;
  }
  } while (retrytimes <= 5);
  if (directory.exists(foldername))
  console.writeline("deleting folder failed.");
  console.writeline("done");
  console.readkey();
 }
 }
}

希望本文所述对大家的c#程序设计有所帮助。