c# - C# EnumerateDirectories 不应使用本地化路径
问题描述
下面的代码产生以下输出:
C:\ProgramData\Microsoft\Windows\Start Menu\Programs
C:\ProgramData\Microsoft\Windows\Start Menu\Programme
(本地化德语)
问题:它们都指的是同一个目录,但我不能在本地化路径上调用EnumerateFiles(这无论如何都没有意义),因为它会产生一个System.UnauthorizedAccessException,这也意味着我不能使用EnumerateFiles,SearchOption.AllDirectories
因为我得到了同样的例外。
有没有办法只从EnumerateDirectories中获取功能性非本地化路径?
//Root Directory is C:\ProgramData\Microsoft\Windows\Start Menu
foreach(DirectoryInfo directoryInfo in rootDirectory.EnumerateDirectories("*", SearchOption.TopDirectoryOnly))
{
Console.WriteLine("Dir: " + directoryInfo.FullName);
//C:\ProgramData\Microsoft\Windows\Start Menu\Programme
//C:\ProgramData\Microsoft\Windows\Start Menu\Programs
foreach (FileInfo fileInfo in directoryInfo.EnumerateFiles("*", SearchOption.TopDirectoryOnly))
{
//do stuff
}
}
解决方案
您必须递归地遍历每个目录,以便在您无权访问文件夹时添加异常处理程序。下面是代码示例
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.IO;
namespace SAveDirectoriesXml
{
class Program
{
const string FILENAME = @"c:\temp\test.xml";
const string FOLDER = @"c:\temp";
static XmlWriter writer = null;
static void Main(string[] args)
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
writer = XmlWriter.Create(FILENAME, settings);
writer.WriteStartDocument(true);
DirectoryInfo info = new DirectoryInfo(FOLDER);
WriteTree(info);
writer.WriteEndDocument();
writer.Flush();
writer.Close();
Console.WriteLine("Enter Return");
Console.ReadLine();
}
static long WriteTree(DirectoryInfo info)
{
long size = 0;
writer.WriteStartElement("Folder");
try
{
writer.WriteAttributeString("name", info.Name);
writer.WriteAttributeString("numberSubFolders", info.GetDirectories().Count().ToString());
writer.WriteAttributeString("numberFiles", info.GetFiles().Count().ToString());
writer.WriteAttributeString("date", info.LastWriteTime.ToString());
foreach (DirectoryInfo childInfo in info.GetDirectories())
{
size += WriteTree(childInfo);
}
}
catch (Exception ex)
{
string errorMsg = string.Format("Exception Folder : {0}, Error : {1}", info.FullName, ex.Message);
Console.WriteLine(errorMsg);
writer.WriteElementString("Error", errorMsg);
}
FileInfo[] fileInfo = null;
try
{
fileInfo = info.GetFiles();
}
catch (Exception ex)
{
string errorMsg = string.Format("Exception FileInfo : {0}, Error : {1}", info.FullName, ex.Message);
Console.WriteLine(errorMsg);
writer.WriteElementString("Error",errorMsg);
}
if (fileInfo != null)
{
foreach (FileInfo finfo in fileInfo)
{
try
{
writer.WriteStartElement("File");
writer.WriteAttributeString("name", finfo.Name);
writer.WriteAttributeString("size", finfo.Length.ToString());
writer.WriteAttributeString("date", info.LastWriteTime.ToString());
writer.WriteEndElement();
size += finfo.Length;
}
catch (Exception ex)
{
string errorMsg = string.Format("Exception File : {0}, Error : {1}", finfo.FullName, ex.Message);
Console.WriteLine(errorMsg);
writer.WriteElementString("Error", errorMsg);
}
}
}
writer.WriteElementString("size", size.ToString());
writer.WriteEndElement();
return size;
}
}
}
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