search files = problems

kevin bredahl

hi
i try to list all file of certain type from my c drive. but i run into the same problem every time

(Access to the path 'C:\$Recycle.Bin\S-1-5-18' is denied.)

how can i work around this problem.
my code is the following:

private void button1_Click(object sender, EventArgs e)
{
listView1.Items.Clear();
var files = Directory.EnumerateFiles(@"C:\", "*" + comboBox1.SelectedItem.ToString(), SearchOption.AllDirectories);

foreach (string file in files)
{
string filename = Path.GetFileNameWithoutExtension(file);
ListViewItem item = new ListViewItem(filename);
item.Tag = file;
listView1.Items.Add(item);
}

}

8 Replies

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Abhay Shanker12y ago
you can also check below url

How to start a Process as administrator mode in C#

http://stackoverflow.com/questions/2532769/how-to-start-a-process-as-administrator-mode-in-c-sharp
Vulpes12y ago
That's the exception which gets thrown if you try to access a directory or file without having the required permission.

What I've tried to do with the above code is to catch and simply 'swallow' this exception so that the iteration can continue with the next directory and the user won't be any the wiser.

Note that even if this code runs, it may take a long time to execute depending on the number of directories and files on your system.
kevin bredahl12y ago
where dos the unauthorizedexception from
Vulpes12y ago
See if the following modification to your code will just skip directories which need administrative privileges to access them. Note that you can't use SearchOption.AllDirectories for this but need to do the recursive directory search 'manually':

private void button1_Click(object sender, EventArgs e)
{
listView1.Items.Clear();
string folder = @"C:\";
string searchPattern = "*" + comboBox1.SelectedItem.ToString();
LoadListView(folder, searchPattern);
}

private void LoadListView(string folder, string searchPattern)
{

foreach(string file in Directory.EnumerateFiles(folder, searchPattern))
{
string filename = Path.GetFileNameWithoutExtension(file);
ListViewItem item = new ListViewItem(filename);
item.Tag = file;
listView1.Items.Add(item);
}

foreach(string subFolder in Directory.EnumerateDirectories(folder))
{
try
{
LoadListView(subFolder, searchPattern);
}
catch(UnauthorizedException)
{
// do nothing in here
}
}
}
kevin bredahl12y ago
what u mean

can i make some kind for exception for the recyclebin
Vulpes12y ago
You'd need to create another application which launches your present application with administrative privileges.

However, before you think about doing stuff like that, I'd see whether that's actually the problem.
kevin bredahl12y ago
how to do that in code
Vulpes12y ago
Try 'Run as administrator'.