用户文件夹的 C# UnauthorizedAccessException

Question

我试图列出我的 "Thomas" 用户文件夹中的所有文件夹和文件，然后我想获取这些文件夹中的所有文件夹以及文件等。但是每当我运行它时，它都会抛出这个异常：

System.UnauthorizedAccessException: Access to the path 'C:\Users\Thomas\AppData\Local\Application Data' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileSystemEnumerableIterator`1.AddSearchableDirsToStack(SearchData localSearchData)
   at System.IO.FileSystemEnumerableIterator`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.IO.Directory.GetDirectories(String path, String searchPattern, SearchOption searchOption)
   at GetFilesInFolders.Program.Main(String[] args) in c:\users\thomas\documents\visual studio 2017\Projects\GetFilesInFolders\GetFilesInFolders\Program.cs:line 23

我觉得这很奇怪，因为我有访问此文件夹的完全权限，但出于某种原因，它说的不是这样。

全部代码如下：

using System;
using System.IO;
using System.Collections.Generic;

namespace GetFilesInFolders
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter a path: ");
            string path = Console.ReadLine();
            int UnauthorizedAccessCount = 0;//counter for file i cant access
            List<string> DirList = new List<string>();
            List<string> FileList = new List<string>();
            try
            {
                if (Directory.Exists(path))
                {
                    foreach (string dir in Directory.GetDirectories(path, "*", SearchOption.AllDirectories))
                    {
                        DirList.Add(dir);
                    }
                    foreach (string file in Directory.GetFiles(path, "*", SearchOption.AllDirectories))
                    {
                        FileList.Add(file);
                    }
                }
                else
                {
                    Console.WriteLine("Directory does not exist!");
                    Console.ReadKey();
                    return;
                }
            }
            catch (UnauthorizedAccessException ex)
            {
                Console.WriteLine("{0}", ex);
            }
            if(FileList.Count == 0)
            {
                Console.WriteLine("There were no files, or you didn't have proper permissions. (You didn't have permission to {0} files or folders", UnauthorizedAccessCount);
                Console.ReadKey();
            }
            if(DirList.Count == 0)
            {
                Console.WriteLine("There were no folders, or you didn't have proper permissions. (You didn't have permission to {0} files or folders", UnauthorizedAccessCount);
                Console.ReadLine();
            }
            else
            {
                Console.WriteLine("Here are all the folders:\n");
                foreach (string dir in DirList)
                {
                    Console.WriteLine(dir);
                }
                Console.WriteLine("Here are all the files:\n");
                foreach (string file in FileList)
                {
                    Console.WriteLine(file);
                }
                if (UnauthorizedAccessCount != 0)
                {
                    Console.WriteLine("You had no permission to access {0} files.", UnauthorizedAccessCount);
                }
                else
                {

                }
                Console.ReadLine();
            }

        }
    }
}

Answer 1

你说你有完全权限，但控制台脚本不运行具有该帐户的权限。它运行具有默认用户权限，并且 App Data 是 Windows 中的一个受限文件夹（普通用户不应四处浏览）。

将您的控制台应用程序更改为运行作为管理员。请参阅此答案以了解如何执行此操作：

How do I force my .NET application to run as administrator?

用户文件夹的 C# UnauthorizedAccessException

C# UnauthorizedAccessException to User Folder

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