Ignore folders/files when Directory.GetFiles() is denied access
c#, getfiles
Solution
You will have to do the recursion manually; don't use AllDirectories - look one folder at a time, then try getting the files from sub-dirs. Untested, but something like below (note uses a delegate rather than building an array):
using System;
using System.IO;
static class Program
{
static void Main()
{
string path = ""; // TODO
ApplyAllFiles(path, ProcessFile);
}
static void ProcessFile(string path) {/* ... */}
static void ApplyAllFiles(string folder, Action<string> fileAction)
{
foreach (string file in Directory.GetFiles(folder))
{
fileAction(file);
}
foreach (string subDir in Directory.GetDirectories(folder))
{
try
{
ApplyAllFiles(subDir, fileAction);
}
catch
{
// swallow, log, whatever
}
}
}
}
Problem
I am trying to display a list of all files found in the selected directory (and optionally any subdirectories). The problem I am having is that when the GetFiles() method comes across a folder that it cannot access, it throws an exception and the process stops. How do I ignore this exception (and ignore the protected folder/file) and continue adding accessible files to the list? ``` try { if (cbSubFolders.Checked == false) { string[] files = Directory.GetFiles(folderBrowserDialog1.SelectedPath); foreach (string fileName in files) ProcessFile(fileName); } else { string[] files = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.*", SearchOption.AllDirectories); foreach (string fileName in files) ProcessFile(fileName); } lblNumberOfFilesDisplay.Enabled = true; } catch (UnauthorizedAccessException) { } finally {} ```