C# - Get a List of Files Excluding Those That Are Hidden

C# - Get a list of files excluding those that are hidden

This should work for you:

DirectoryInfo directory = new DirectoryInfo(@"C:\temp");
FileInfo[] files = directory.GetFiles();

var filtered = files.Where(f => !f.Attributes.HasFlag(FileAttributes.Hidden));

foreach (var f in filtered)
{
    Debug.WriteLine(f);
}

Get all files except files in hidden directories?

One way without "manually iterating" would be the following:

var dirInfo = new DirectoryInfo(path);
var hiddenFolders = dirInfo.GetDirectories("*", SearchOption.AllDirectories)
    .Where(d => (d.Attributes & FileAttributes.Hidden) != 0)
    .Select(d => d.FullName);

var files = dirInfo.GetFiles("*.*", SearchOption.AllDirectories)
    .Where(f => (f.Attributes & FileAttributes.Hidden) == 0 && 
        !hiddenFolders.Any(d => f.FullName.StartsWith(d)));

BUT this will be iterating the whole directory tree twice and has the .Any-overhead for every file => use @Catburry's solution as it has a better performance and is easier to maintain IMO...

C# Listing files without hidden files (Plus listing option)

I have found this:

This should work for you:

 DirectoryInfo directory = new DirectoryInfo(@"C:\temp"); 
 FileInfo[] files = directory.GetFiles();

 var filtered = files.Select(f => f)
                     .Where(f => (f.Attributes & FileAttributes.Hidden) == 0);

 foreach (var f in filtered) {
     Debug.WriteLine(f); 
 }

How to use Directory.EnumerateFiles excluding hidden and system files

.Where(f => (new FileInfo(f).Attributes & FileAttributes.Hidden & FileAttributes.System) == 0)

Since FileAttributes values are flags, they are disjunctive on the bit level, so you can combine them properly. As such, FileAttributes.Hidden & FileAttributes.System will always be 0. So you’re essentially checking for the following:

(new FileInfo(f).Attributes & 0) == 0

And that will always be true since you are removing any value with the & 0 part.

What you want to check is whether the file has neither of those flags, or in other words, if there are no common flags with the combination of both:

.Where(f => (new FileInfo(f).Attributes & (FileAttributes.Hidden | FileAttributes.System)) == 0)

You can also use Enum.HasFlag to make this a bit better understandable:

.Where(f => !new FileInfo(f).Attributes.HasFlag(FileAttributes.Hidden | FileAttributes.System))

Hiding hidden documents and excluding file extensions from a directory in C#

You have a logic issue with:

string[] filePaths = Directory.GetFiles(Directory.GetCurrentDirectory(), "*.xls")
   .Where(name => !name.EndsWith(".xlsx") || !name.Contains(@"\~$") 
   || (fileAttribute & FileAttributes.Hidden) == 0).ToArray()

you want ands, not ors..

string[] filePaths = Directory.GetFiles(Directory.GetCurrentDirectory(), "*.xls")
   .Where(name => !name.EndsWith(".xlsx") && !name.Contains(@"\~$") 
   && (fileAttribute & FileAttributes.Hidden) == 0).ToArray()

However, your fileattribute is checking the directory, not the file.

So you actually want

string[] filePaths = Directory.GetFiles(Directory.GetCurrentDirectory(), "*.xls")
   .Where(name => !name.EndsWith(".xlsx") && !name.Contains(@"\~$") 
   && (File.GetAttributes(name) & FileAttributes.Hidden) == 0).ToArray()

How to find all files, including hidden and system files

DirectoryInfo.GetFiles() returns all files (excluding those that you don't have permission to see).

At the very least it definitely does include hidden files, as shown by this person who is asking almost exactly the reverse of this question.

Do you have a specific example of a file that appears elsewhere but not in this list?

Exclude certain file extensions when getting files from a directory

You should filter these files yourself, you can write something like this:

    var files = Directory.GetFiles(jobDir).Where(name => !name.EndsWith(".xml"));

Hidden folders C#

You can use DirectoryInfo to check if a folder is hidden:

string[] folders = Directory.GetDirectories(path);
foreach (string subFolder in folders) {
 string folder = Path.Combine(path, subFolder);
 DirectoryInfo info = new DirectoryInfo(folder);
 if ((info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden) {
  // do something with your non-hidden folder here
 }
}

Another solution would be the following one-liner:

var folders = new DirectoryInfo(path).GetDirectories().Where(x => (x.Attributes & FileAttributes.Hidden) == 0);

In this case folders is an IEnumberable<DirectoryInfo>.
If you want files instead of directories, simply replace GetDirectories with GetFiles.

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