使用Directory.GetFiles方法时如何避免访问被拒绝的路径异常 [英] how i can avoid access denied path exception when working with Directory.GetFiles method

问题描述

大家好
我想要使​​用以下代码在硬盘之一中获取文件列表:

Hi all
I want get list of file in one of hard drive with this code:

String[] file= Directory.GetFiles(DriveLeterComboBox.SelectedItem.ToString(),"*.txt", SearchOption.AllDirectories);

当遇到诸如系统卷信息之类的系统目录时，抛出

when it Be encountered with system directory such as System Volume Information throw

Access to the path 'C:\System Volume Information' is denied.

例外
我如何避免这种异常?

exception
how i can avoid this exception?

推荐答案

我自己有一个thius问题，而你真的不能-最好的办法就是检查一下而不要尝试打开它:

I''v had thius problem myself, and you can''t really - the best you can do is check for it and not try to open it:

private DirNode SizeDirFiles( string dir )
     {
     long size = 0;
     int count = 0;
     if (IsIgnorable( dir ))
         {
         // Perfectly normal - we don't want to look here anyway, as it will throw an acess exception...
         }
     else
         {
         try
...
private bool IsIgnorable( string dir )
    {
    if (dir.EndsWith( ":System Volume Information" )) return true;
    if (dir.Contains( ":

RECYCLE.BIN"))) true ; 返回 假； }

RECYCLE.BIN" )) return true; return false; }

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