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Display files in a folder to a CSV using C#

Is there a simple way to display the files in a folder to a CSV that shows whether the files in that folder are JPG, PDF, or other using C#?

There is no built-in way to do this in C#, but you can use the System.IO.Directory and System.IO.File classes to get a list of files in a directory and then check their extensions to see if they are JPG, PDF, or other.
using System;
using System.IO;
class Program
{
static void Main(string[] args)
{
string directory = "C:\\";
string[] files = Directory.GetFiles(directory);
using (StreamWriter writer = new StreamWriter("files.csv"))
{
foreach (string file in files)
{
string extension = Path.GetExtension(file);
writer.WriteLine("{0},{1}", file, extension);
}
}
}
}

You can use Matcher to traverse a folder structure using wild cards to getting specific file types and exclusions also.
Example method
public static async Task Demo(string parentFolder, string[] patterns, string[] excludePatterns, string fileName)
{
StringBuilder builder = new StringBuilder();
Matcher matcher = new();
matcher.AddIncludePatterns(patterns);
matcher.AddExcludePatterns(excludePatterns);
await Task.Run(() =>
{
foreach (string file in matcher.GetResultsInFullPath(parentFolder))
{
builder.AppendLine(file);
}
});
await File.WriteAllTextAsync("TODO", builder.ToString());
}
Example call, find all png and pdf files but exclude some specified in the exclude array which is explained in the docs.
string[] include = { "**/*.png", "**/*.pdf" };
string[] exclude = { "**/*in*.png", "**/*or*.png" };
await GlobbingOperations.Demo(
"Parent folder",
include,
exclude,
"Dump.txt");
When traversing files add any other logic to get specifics about a file and use that to add to the builder variable for writing to a file.

File.OpenRead() Directories , Sub Directories , Files, and then Write Folders and files to another directory

I am looking to read folders and files from a directory structure like so..
e.g
C:\RootFolder
SubFolder1
SubFolder2
File1
File2
SubFolder3
File3
Files....
Files....
I would like to read both, files and folders and write to another directory I cant use copy , because the directory I want to write to is remote and not local.
I read the files here.... Id love to be able to read folders and files and write both to another directory.
public static IEnumerable<FileInfo> GetFiles(string dir)
{
return Directory.EnumerateFiles(dir, "*", SearchOption.AllDirectories)
.Select(path =>
{
var stream = File.OpenRead(path);
return new FileInfo(Path.GetFileName(path), stream);
})
.DisposeEach(c => c.Content);
}
this function writes files to a remote sftp site.
public Task Write(IEnumerable<FileInfo> files)
{
return Task.Run(() =>
{
using (var sftp = new SftpClient(this.sshInfo))
{
sftp.Connect();
sftp.ChangeDirectory(this.remoteDirectory);
foreach (var file in files)
{
sftp.UploadFile(file.Content, file.RelativePath);
}
}
});
}
In this function I write the read files from the above function.
private async static Task SendBatch(Config config, Batch batch, IRemoteFileWriter writer)
{
var sendingDir = GetClientSendingDirectory(config, batch.ClientName);
Directory.CreateDirectory(Path.GetDirectoryName(sendingDir));
Directory.Move(batch.LocalDirectory, sendingDir);
Directory.CreateDirectory(batch.LocalDirectory);
//Use RemoteFileWriter...
var files = GetFiles(sendingDir);
await writer.Write(files).ContinueWith(t =>
{
if(t.IsCompleted)
{
var zipArchivePath = GetArchiveDirectory(config, batch);
ZipFile.CreateFromDirectory(
sendingDir,
zipArchivePath + " " +
DateTime.Now.ToString("yyyy-MM-dd hh mm ss.Zip")
);
}
});
}
Thank you!

You are getting UnauthorizedAccessException: Access to the path 'C:\temp' is denied. because you can't open a stream from a folder as it doesn't contain bytes.
From what I can understand you are looking to copy the files from one folder to another.
This answer seems to cover what you are doing. https://stackoverflow.com/a/3822913/3634581
Once you have copied the directories you can then create the zip file.
If you don't need to copy the files and just create the Zip I would recommend that since it will reduce the disk IO and speed up the process.
ZipArchive (https://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive(v=vs.110).aspx) can be used to create a zip file straight to a stream.

I figured it out here is the solution
public Task Write(IEnumerable<FileInfo> files)
{
return Task.Run(() =>
{
using (var sftp = new SftpClient(this.sshInfo))
{
sftp.Connect();
sftp.ChangeDirectory(this.remoteDirectory);
foreach (var file in files)
{
var parts = Path.GetDirectoryName(file.RelativePath)
.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar, StringSplitOptions.RemoveEmptyEntries);
sftp.ChangeDirectory(this.remoteDirectory);
foreach (var p in parts)
{
try
{
sftp.ChangeDirectory(p);
}
catch (SftpPathNotFoundException)
{
sftp.CreateDirectory(p);
sftp.ChangeDirectory(p);
}
}
sftp.UploadFile(file.Content, Path.GetFileName(file.RelativePath));
}
}
});
}
****Key point to the solution was
this
var parts = Path.GetDirectoryName(file.RelativePath)
.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar, StringSplitOptions.RemoveEmptyEntries);
We call *Path.GetDirectoryName
on the file itself to get the directory that correlates to the file.
We split the file directory to get the folder name and finally create the folder name we obtained from the split and upload the file to it.
I hope this helps others who may encounter such issue.

C# -Make a zip file from List of file paths

I have a number of folders and I have number of file in each folders.
I am taking some of the file paths from different folders and I need to zip those files into a single zip file.
if I have the file in a single folder, I can do zip using
string startPath = #"c:\example\start";//folder to add
string zipPath = #"c:\example\result.zip";//URL for your ZIP file
ZipFile.CreateFromDirectory(startPath, zipPath, CompressionLevel.Fastest, true);
string extractPath = #"c:\example\extract";//path to extract
ZipFile.ExtractToDirectory(zipPath, extractPath);
using (ZipArchive newFile = ZipFile.Open(zipName, ZipArchiveMode.Create))
{
foreach (string file in Directory.GetFiles(myPath))
{
newFile.CreateEntryFromFile(file);
}
}
Suppose I don't know about the folders, I only have a list of file paths, I need to foreach through each file path and add into the zip. What should I do for this?

You can enumerate all files in the directory include subdirectories with Directory.GetFiles overloading and SearchOption.AllDirectories option and then use it
String[] allfiles = System.IO.Directory.GetFiles("myPath", "*.*", System.IO.SearchOption.AllDirectories);
foreach (string file in allfiles)
{
newFile.CreateEntryFromFile(file);
}
You can use ZipFile.CreateFromDirectory(string sourceDirectoryName, string destinationArchiveFileName) or its overload to create an archive in one step too.
Also there is a way to manipulate zip archive structure more flexibly via Path.GetDirectoryName() method. Here is the example:
foreach(var filePath in files)
{
var directory = Path.GetDirectoryName(filePath);
var fileName = Path.GetFileName(filePath);
var entry = archive.GetEntryFromFile(filePath, $"{directory}/{fileName}");
}
Finally, you can use 3rd party library DotNetZip and solve yor scenario in just 3 lines of code:
using (ZipFile zip = new ZipFile())
{
zip.AddFiles(files);
zip.Save("Archive.zip");
}

Using the DotNetZip library from newget manager, just check whether it will work or not
using (ZipFile zip = new ZipFile())
{
foreach(var filestring in AllFileArray)
{
zip.AddFile(filestring);
}
zip.save("MyZipFile.zip")
}

Enumerate zipped contents of unzipped folder

I am trying to enumerate the zipped folders that are inside an unzipped folder using Directory.GetDirectories(folderPath).
The problem I have is that it does not seem to be finding the zipped folders, when I come to iterate over the string[], it is empty.
Is Directory.GetDirectories() the wrong way to go about this and if so what method serves this purpose?
Filepath example: C:\...\...\daily\daily\{series of zipped folder}
public void CheckZippedDailyFolder(string folderPath)
{
if(folderPath.IsNullOrEmpty())
throw new Exception("Folder path required");
foreach (var folder in Directory.GetDirectories(folderPath))
{
var unzippedFolder = Compression.Unzip(folder + ".zip", folderPath);
using (TextReader reader = File.OpenText(unzippedFolder + #"\" + new DirectoryInfo(folderPath).Name))
{
var csv = new CsvReader(reader);
var field = csv.GetField(0);
Console.WriteLine(field);
}
}
}

GetDirectories is the wrong thing to use. Explorer lies to you; zip files are actually files with an extension .zip, not real directories on the file system level.
Look at:
https://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive.entries%28v=vs.110%29.aspx (ZipArchive.Entries) and/or
https://msdn.microsoft.com/en-us/library/system.io.compression.zipfile%28v=vs.110%29.aspx (ZipFile) to see how to deal with them.

DotNetZip - Adding Folders

i imagine this is very simple but i can find nothing in the DotNetZip examples or documentation to help me. I need to add a folder to a zip that contains both folders and files, i need to maintain the folders rather than only zipping their files but using the following it always strips away the folders:
using (ZipFile zip = new ZipFile())
{
string[] files = Directory.GetFiles(#TempLoc);
string[] folders = Directory.GetDirectories(#TempLoc);
zip.AddFiles(files, "Traces");
foreach (string fol in folders)
{
zip.AddDirectory(fol, "Traces");
}
zip.Comment = "These traces were gathered " + System.DateTime.Now.ToString("G");
zip.Save(arcTraceLoc + userName.Text + "-Logs.zip");
}
I'm using the loop as i could not find a function for folders similar to 'AddFiles' in DotNetZip.
Thanks.

I think this is what you need:
bool recurseDirectories = true;
using (ZipFile zip = new ZipFile())
{
zip.AddSelectedFiles("*", #TempLoc, string.Empty, recurseDirectories);
zip.Save(ZipFileToCreate);
}