Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Issue in accesing the drive using Directory.GetFiles in C#

Posted on 2009-04-06
7
Medium Priority
?
2,466 Views
Last Modified: 2013-12-17
HI,
I am writing a program to find all the files with the specified filter. The program works fine if i give path to some folder, but throws an exception if i pass the drive letter as parameter. Can you please help me resolve this problem?
I am getting error UnauthorizedAccessException: Access to the path 'E:\System Volume Information' is denied.
string[] FileNames = Directory.GetFiles("E:\\","*.chm", SearchOption.AllDirectories);            
            foreach (string FullPath in FileNames)
            {                
                FileInfo file = new FileInfo(FullPath);
                string Path = file.DirectoryName;
                string FileName = file.Name;
                checkedListBox1.Items.Add(FileName);
            }

Open in new window

0
Comment
Question by:yamurthy
  • 3
  • 2
  • 2
7 Comments
 
LVL 6

Expert Comment

by:SaedSalman
ID: 24078617
you do not have access to "System Volume Information"
Solution:
except "System Volume Information" from your code.
Or, to avide each and every inaccessable file: you have to you use try catch block as follows:

try
{
string[] FileNames = Directory.GetFiles("E:\\","*.chm", SearchOption.AllDirectories);            
            foreach (string FullPath in FileNames)
            {                
                FileInfo file = new FileInfo(FullPath);
                string Path = file.DirectoryName;
                string FileName = file.Name;
                checkedListBox1.Items.Add(FileName);
            }
}
catch(UnauthorizedAccessException){//do nothing}

Open in new window

0
 
LVL 1

Author Comment

by:yamurthy
ID: 24079627
i did use try and catch to avoid the exception. but my criteria will not be solved. i want to gain access to the drive so that i want to search all the files and folders in that drive.
i want to somehow get access. i have admin privilages in my system, but still unable to do this :(
0
 
LVL 6

Expert Comment

by:SaedSalman
ID: 24079685
Do not know why accessing this folder ;-)
But here is what you are looking for:
http://support.microsoft.com/kb/309531
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 6

Expert Comment

by:SaedSalman
ID: 24079725
this will solve "System Volume Information" problem
string[] FileNames = Directory.GetFiles("E:\\","*.chm", SearchOption.AllDirectories);            
            foreach (string FullPath in FileNames)
            {                
                FileInfo file = new FileInfo(FullPath);
                string Path = file.DirectoryName;
                string FileName = file.Name;
                if(FileName == "System Volume Information")   //Except System Volume Information folder
                       continue;
                checkedListBox1.Items.Add(FileName);
            }

Open in new window

0
 
LVL 6

Expert Comment

by:Cebik
ID: 24082749
this don't fix the problem..
exception will throw in 1 line..
(not if you change access to directory but it isn't good idea [http://support.microsoft.com/kb/309531])
0
 
LVL 6

Accepted Solution

by:
Cebik earned 1000 total points
ID: 24082853
this one will work good

namespace ConsoleApplication1
{
    class Program
    {
        public static void Main(string[] args)
        {
            ArrayList items = new ArrayList();
 
            // Modify the path to work on your machine
            FindFile(@"X:\",
             "*.cs", items);
 
            Console.WriteLine("Files found - {0}", items.Count);
            foreach (FoundFile file in items)
                Console.WriteLine("File {0} - Full Path {1}", file.Name, file.FullPath);
        }
 
        public static void FindFile(string dir, string file, ArrayList items)
        {
            DirectoryInfo di = new DirectoryInfo(dir);
            try
            {
                DirectoryInfo[] subs = di.GetDirectories();
 
                foreach (DirectoryInfo sub in subs)
                    FindFile(sub.FullName, file, items);
 
                FileInfo[] files = di.GetFiles(file);
                foreach (FileInfo info in files)
                    items.Add(new FoundFile(info.Name, info.FullName));
            }
            catch (UnauthorizedAccessException)
            {
            }
        }
 
    }
 
    public struct FoundFile
    {
        private readonly string mName;
        private readonly string mFullPath;
 
        public string Name
        {
            get { return mName; }
        }
 
        public string FullPath
        {
            get { return mFullPath; }
        }
 
        public FoundFile(string name, string fullPath)
        {
            mName = name;
            mFullPath = fullPath;
        }
    }
}

Open in new window

0
 
LVL 1

Author Closing Comment

by:yamurthy
ID: 31567050
Thanks a lot. works fine.
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
Is your OST file inaccessible, Need to transfer OST file from one computer to another? Want to convert OST file to PST? If the answer to any of the above question is yes, then look no further. With the help of Stellar OST to PST Converter, you can e…
As many of you are aware about Scanpst.exe utility which is owned by Microsoft itself to repair inaccessible or damaged PST files, but the question is do you really think Scanpst.exe is capable to repair all sorts of PST related corruption issues?
Suggested Courses
Course of the Month12 days, 7 hours left to enroll

579 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question