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

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);
            }

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SaedSalman

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}

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Anjeneya Murthy

ASKER

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 :(

SaedSalman

Do not know why accessing this folder ;-)
But here is what you are looking for:
http://support.microsoft.com/kb/309531

SaedSalman

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);
            }

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Cebik

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])

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Cebik

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Anjeneya Murthy

ASKER

Thanks a lot. works fine.