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How to copy specific folder to new folder by clicking a button

One Question about coding (Visual Studio C# Windows form Application) There have Two folder: (Source and Target) and I build 1 button "Copy". In (Source) folder have random folders such "20190401", "20190402", "20190403", "20180401", "20170401" and "20160401". Every these folders have [10] ".txt" files. What is the coding if I only want to copy all "201904**" folders with [3] ".txt" files inside to "Target" folder?
Here my code for now, after I click a button the folder wouldn't copy. I guess there have some problem with this codes and I still not found it until. Hope you guys can help me, thank you.
*namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string FROM_DIR = "C:/Users/Desktop/Source/";
string TO_DIR = "C:/Users/Desktop/Target/";
DirectoryInfo diCopyForm = new DirectoryInfo(FROM_DIR);
DirectoryInfo[] fiDiskfiles = diCopyForm.GetDirectories();
string directname = "201904";
string filename = ".txt";
foreach (DirectoryInfo newfile in fiDiskfiles)
{
try
{
if (newfile.Name == "2019")
{
foreach (DirectoryInfo direc in newfile.GetDirectories())
if (direc.Name.StartsWith(directname))
{
int count = 0;
foreach (FileInfo file in direc.GetFiles())
{
if (file.Name.EndsWith(filename))
{
count++;
}
}
if (count == 3)
{
DirectoryCopy(direc.FullName,Path.Combine(TO_DIR,direc.Name), true);
count = 0;
MessageBox.Show("success");
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
private static void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
{
// Get the subdirectories for the specified directory.
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
if (!dir.Exists)
{
throw new DirectoryNotFoundException("Source directory does not exist or could not be found: "+ sourceDirName);
}
DirectoryInfo[] dirs = dir.GetDirectories();
// If the destination directory doesn't exist, create it.
if (!Directory.Exists(destDirName))
{
Directory.CreateDirectory(destDirName);
}
// Get the files in the directory and copy them to the new location.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
string temppath = Path.Combine(destDirName, file.Name);
file.CopyTo(temppath, false);
}
// If copying subdirectories, copy them and their contents to new location.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
string temppath = Path.Combine(destDirName, subdir.Name);
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}
}
*}
By clicking the button, automatically copy all "201904**" folder and 3 ".txt files in (Source) folder to (target folder).

You didn't say which 3 txt files you want to copy so the code below copies all txt files, please explain how you select the files and I'll edit the code.
const string Source = #"C:\Users\Desktop\Source\";
const string Target = #"C:\Users\Desktop\Target\";
const string StartsWith = "201904";
const string FileType = "txt";
public static void Copy()
{
if (!Directory.Exists(Source)) //Check if the source directory exists
throw new Exception("Source directory is missing!");
Directory.CreateDirectory(Target); //If the target directory doesn't exists it will create one
var Directories = Directory.GetDirectories(Source, $"{StartsWith}*"); //Get directories which match the search pattern
for (int i = 0; i < Directories.Length; i++)
{
DirectoryInfo directory = new DirectoryInfo(Directories[i]);
Directory.CreateDirectory($"{Target}{directory.Name}"); //Create the directory in the target folder
var Files = Directory.GetFiles($"{Source}{directory.Name}", $"*.{FileType}"); //Get files
for (int j = 0; j < Files.Length; j++)
{
FileInfo file = new FileInfo(Files[j]);
File.Copy($"{Source}{directory.Name}" + #"\" + file.Name, $"{Target}{directory.Name}" + #"\" + file.Name); //Copy the file to the target folder
}
}
}
This code selects all directories which start with "201904" and all txt files inside them and copies it to the target folder.
EDIT: Fixed a mistake in the code

Get files from a folder that I have created in Xamarin.Android

I want get all files from an external storage folder(wall_e_imgs)..Here are codes-
public void getImages()
{
var path1 = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath.ToString();
string path = System.IO.Path.Combine(path1, "wall_e_imgs");
//var files= System.IO.Directory.GetFiles(Android.OS.Environment.ExternalStorageDirectory.ToString() + "wall_e_imgs");
//var files = System.IO.Directory.GetFiles(path);
//string path = Android.OS.Environment.ExternalStorageDirectory.ToString() + "/wall_e_imgs";
//File directory=new File(path);
Java.IO.File directory = new Java.IO.File(path);
Java.IO.File[] files = directory.ListFiles();//always count is 0 even though there are lot files there
foreach (var i in files)
{
FileInfo info = new FileInfo(i.Name);
if (info.Name.Contains("Wall_e"))
{
di.Add(new DownloadedImages { Path1 = info.DirectoryName, Name1 = info.FullName });
}
}
}
But it always give 0 files even though there are lot of files.

Try this
var folder = Android.OS.Environment.ExternalStorageDirectory + Java.IO.File.Separator + "yourfoldername";
if (!Directory.Exists(folder))
Directory.CreateDirectory(folder);
var filesList = Directory.GetFiles(folder);
foreach (var file in filesList)
{
var filename = Path.GetFileName(file);
}

Try something like this:
// Use whatever folder path you want here, the special folder is just an example
string folderPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "wall_e_imgs");
if (Directory.Exists(folderPath))
{
var files = Directory.EnumerateFiles(folderPath);
foreach (var file in files)
{
// Do your stuff
}
}
Please note that this uses the Directory class from System.IO, not Java.IO

ffilelist will contain a list of mp3 files in "/storage/emulated/0/Music/"
string phyle;
string ffilelist = "";
public void listfiles()
{
try
{
var path1 = "/storage/emulated/0/Music/";
var mp3Files = Directory.EnumerateFiles(path1, "*.mp3", SearchOption.AllDirectories);
foreach (string currentFile in mp3Files)
{
phyle = currentFile;
ffilelist = ffilelist + "\n" + phyle;
}
//playpath(phyle); // play the last file found
}
catch (Exception e9)
{
Toast.MakeText(ApplicationContext, "ut oh\n"+e9.Message , ToastLength.Long).Show();
}
}

Making an iso file from a directory using DiscUtils

Iam trying to build an iso file from a directory with discutils. This code works fine with a couple of files but after a while i throws an exception stating that "An object with the same key already exists" at "isoBuilder.AddFile(fileOnIso,br.BaseStream);". I don't understand why this happens can someone please shed some light?
public void AddtoISO(string directory,string isoFile)
{
BinaryReader br;
long bytesRemain = 0;
long totalBytesWritten = 0;
DirectoryInfo rootDirToAdd = new DirectoryInfo(sourceName);
DirectoryInfo currentDirToAdd = new DirectoryInfo(directory);
try
{
foreach (FileInfo file in currentDirToAdd.GetFiles())
{
string fileFullPath = file.FullName;
string fileOnIso = fileFullPath.Substring(fileFullPath.IndexOf(rootDirToAdd.Name) + rootDirToAdd.Name.Length + 1);
Console.WriteLine(fileOnIso);
br = new BinaryReader(file.OpenRead());
while(totalBytesWritten < file.Length)
{
bytesRemain = file.Length - totalBytesWritten;
br.ReadBytes(blockSize);
isoBuilder.AddFile(fileOnIso,br.BaseStream);
if(bytesRemain<blockSize)
{
totalBytesWritten += bytesRemain;
totalBytesAdded += bytesRemain;
}
else
{
totalBytesWritten += blockSize;
totalBytesAdded += blockSize;
}
}
itemsAdded++;
totalBytesWritten = 0;
}
foreach (DirectoryInfo subdir in currentDirToAdd.GetDirectories())
{
string folderFullPath = subdir.FullName;
string folderOnIso = folderFullPath.Substring(folderFullPath.IndexOf(rootDirToAdd.Name) + rootDirToAdd.Name.Length + 1);
isoBuilder.AddDirectory(folderOnIso);
itemsAdded++;
AddtoISO(subdir.FullName,isoFile,ctoken);
}
isoBuilder.Build(isoFile);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
Update
An other possible implementation avoiding streams, the drawback is that it takes too much time (over 30 mins) on a 3GB iso which when built with ultraiso for example, it takes aprox 4 mins.. any ideas?
public void AddtoISO(string directory,string isoFile)
{
try
{
DirectoryInfo rootDirToAdd = new DirectoryInfo(sourceName);
DirectoryInfo currentDirToAdd = new DirectoryInfo(directory);
foreach (FileInfo file in currentDirToAdd.GetFiles())
{
string fileOnHdd = file.FullName;
string fileOnIso = fileOnHdd.Substring(fileOnHdd.IndexOf(rootDirToAdd.Name) + rootDirToAdd.Name.Length + 1);
Console.WriteLine(fileOnIso);
isoBuilder.AddFile(fileOnIso,fileOnHdd);
itemsAdded++;
}
foreach (DirectoryInfo subdir in currentDirToAdd.GetDirectories())
{
itemsAdded++;
AddtoISO(subdir.FullName,isoFile,ctoken);
}
isoBuilder.Build(isoFile);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
Update:
The exception is thrown when ever the directory structure is the following:
\boot\boot
It seems like it creates the key for boot directory and when it encounters boot.ext file it falsely thinks that it is a double addition. In other words when the files contains the name of its containing directory.
Test building dsl-4.11.rc1.iso
index.html
boot
boot\isolinux
boot\isolinux\boot.cat
boot\isolinux\boot.msg
boot\isolinux\f2
boot\isolinux\f3
boot\isolinux\german.kbd
boot\isolinux\isolinux.bin
boot\isolinux\isolinux.cfg
boot\isolinux\linux24
boot\isolinux\logo.16
boot\isolinux\minirt24.gz
KNOPPIX
KNOPPIX\KNOPPIX
Problem on KNOPPIX\KNOPPIX
Update 2
At last some progress.. the error is not in any of the given paths but im my assumption that i had to keep calling isobuilder.Addfile() until the filestream has been added to the iso entirely.
I just had to move:
isoBuilder.AddFile(fileOnIso,br.BaseStream);
Before the foreach closing bracket. This way it will no have to be added again and again in the iso.
One final problem is at the line
isoBuilder.Build(isoFile);
Where it complains about the file being closed. I tried to correct it with:
FileInfo fi = new FileInfo(isoFile);
isoBuilder.Build(fi.OpenWrite());
But it didnt help. Please someone give me the final push to solve it.

I know this is very OLD but I thought Id post if anyone else needed help with this in future.
Below is a fast and efficient function I use to build an ISO using DiscUtils.Iso9660
public string CreateIsoImage(string sourceDrive, string targetIso, string volumeName)
{
try
{
var srcFiles = Directory.GetFiles(sourceDrive, "*", SearchOption.AllDirectories);
var iso = new CDBuilder
{
UseJoliet = true,
VolumeIdentifier = volumeName
};
foreach (var file in srcFiles)
{
var fi = new FileInfo(file);
if (fi.Directory.Name == sourceDrive)
{
iso.AddFile($"{fi.Name}", fi.FullName);
continue;
}
var srcDir = fi.Directory.FullName.Replace(sourceDrive, "").TrimEnd('\\');
iso.AddDirectory(srcDir);
iso.AddFile($"{srcDir}\\{fi.Name}", fi.FullName);
}
iso.Build(targetIso);
return "Success";
}
catch (Exception ex)
{
return ex.Message;
}
}
Usage:
var res = CreateIsoImage("D:\\", "C:\\Temp\\MyIsoImage.iso", "MyVolumeName");
MessageBox.Show(res);

C# return full path with GetFiles

Use this code for search files in directory:
FileInfo[] files = null;
string path = some_path;
DirectoryInfo folder = new DirectoryInfo(path);
files = folder.GetFiles("*.*", SearchOption.AllDirectories);
This return only filename and extension (text.exe). How to return full path to file(C:\bla\bla\bla\text.exe)?
If I use Directory.GetFiles("*.*"), this return full path. But if folder contains point in name(C:\bla\bla\test.0.1), result contains path to folder without file:
0 C:\bla\bla\bla\text.exe
1 C:\bla\bla\test.0.1
2 C:\bla\text.exe
etc.

FileInfo contains a FullName property, which you can use to retrieve full path to a file
var fullNames = files.Select(file => file.FullName).ToArray();
Check
This code on my machine:
FileInfo[] files = null;
string path = #"C:\temp";
DirectoryInfo folder = new DirectoryInfo(path);
files = folder.GetFiles("*.*", SearchOption.AllDirectories);
//you need string from FileInfo to denote full path
IEnumerable<string> fullNames = files.Select(file => file.FullName);
Console.WriteLine ( string.Join(Environment.NewLine, fullNames ) );
prints
C:\temp\1.dot
C:\temp\1.jpg
C:\temp\1.png
C:\temp\1.txt
C:\temp\2.png
C:\temp\a.xml
...
Full solution
The solution to your problem might look like this:
string path = #"C:\temp";
DirectoryInfo folder = new DirectoryInfo(path);
var directories = folder.GetDirectories("*.*", SearchOption.AllDirectories);
IEnumerable<string> directoriesWithDot =
directories.Where(dir => dir.Name.Contains("."))
.Select(dir => dir.FullName);
IEnumerable<string> filesInDirectoriesWithoutDot =
directories.Where(dir => !dir.Name.Contains("."))
.SelectMany(dir => dir.GetFiles("*.*", SearchOption.TopDirectoryOnly))
.Select(file => file.FullName);
Console.WriteLine ( string.Join(Environment.NewLine, directoriesWithDot.Union(filesInDirectoriesWithoutDot) ) );

Each FileInfo object has a FullName property.
But if folder contains point in name (C:\bla\bla\test.0.1), result contains path to folder without file
This is an entirely different issue with possibly diffeent answers/workarounds. Can you be more specific?
I cannot reproduce this.

You need to use FileInfo.
Directory.GetFiles("", SearchOption.AllDirectories).Select(file => new FileInfo(file).FullName);

public static IEnumerable<string> GetAllFilesRecursively(string inputFolder)
{
var queue = new Queue<string>();
queue.Enqueue(inputFolder);
while (queue.Count > 0)
{
inputFolder = queue.Dequeue();
try
{
foreach (string subDir in Directory.GetDirectories(inputFolder))
{
queue.Enqueue(subDir);
}
}
catch (Exception ex)
{
Console.Error.WriteLine("GetAllFilesRecursively: " + ex);
}
string[] files = null;
try
{
files = Directory.GetFiles(inputFolder);
}
catch (Exception ex)
{
Console.Error.WriteLine("GetAllFilesRecursively: " + ex);
}
if (files != null)
{
for (int i = 0; i < files.Length; i++)
{
yield return files[i];
}
}
}
}

you can try this :
void GetFiles()
{
DirectoryInfo d= new DirectoryInfo(strFolderPath);
//file extension for pdf
var files = d.GetFiles("*.pdf*");
FileInfo[] subfileInfo = files.ToArray<FileInfo>();
if (subfileInfo.Length > 0)
{
for (int j = 0; j < subfileInfo.Length; j++)
{
bool isHidden = ((File.GetAttributes(subfileInfo[j].FullName) & FileAttributes.Hidden) == FileAttributes.Hidden);
if (!isHidden)
{
string strExtention = th.GetExtension(subfileInfo[j].FullName);
if (strExtention.Contains("pdf"))
{
string path = subfileInfo[j].FullName;
string name = bfileInfo[j].Name;
}
}
}
}

You can use FileSystemInfo.FullName property.
Gets the full path of the directory or file.

Directory.Move doesn't work (file already exist)

I've got main folder:
c:\test
And there I have 2 folders: Movies and Photos.
Photos has three folders with files with the same structure: People, Animals and Buildings. I'm trying this code:
Directory.Move(#"c:\test\Movies", #"c:\test\Test");
I get exception:
File already exists

This method will move content of a folder recursively and overwrite existing files.
You should add some exception handling.
Edit:
This method is implemented with a while loop and a stack instead of recursion.
public static void MoveDirectory(string source, string target)
{
var stack = new Stack<Folders>();
stack.Push(new Folders(source, target));
while (stack.Count > 0)
{
var folders = stack.Pop();
Directory.CreateDirectory(folders.Target);
foreach (var file in Directory.GetFiles(folders.Source, "*.*"))
{
string targetFile = Path.Combine(folders.Target, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Move(file, targetFile);
}
foreach (var folder in Directory.GetDirectories(folders.Source))
{
stack.Push(new Folders(folder, Path.Combine(folders.Target, Path.GetFileName(folder))));
}
}
Directory.Delete(source, true);
}
public class Folders
{
public string Source { get; private set; }
public string Target { get; private set; }
public Folders(string source, string target)
{
Source = source;
Target = target;
}
}
Update:
This is a simpler version with the use of Directory.EnumerateFiles recursively instead of using a stack.
This will only work with .net 4 or later, to us it with an earlier version of .net change Directory.EnumerateFiles to Directory.GetFiles.
public static void MoveDirectory(string source, string target)
{
var sourcePath = source.TrimEnd('\\', ' ');
var targetPath = target.TrimEnd('\\', ' ');
var files = Directory.EnumerateFiles(sourcePath, "*", SearchOption.AllDirectories)
.GroupBy(s=> Path.GetDirectoryName(s));
foreach (var folder in files)
{
var targetFolder = folder.Key.Replace(sourcePath, targetPath);
Directory.CreateDirectory(targetFolder);
foreach (var file in folder)
{
var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Move(file, targetFile);
}
}
Directory.Delete(source, true);
}

The destination directory should not already exist - the Directory.Move method creates the destination directory for you.

ProcessStartInfo p = new ProcessStartInfo("cmd", "/c move \"c:\\test\\Movies\" \"c:\\test\Test\\"");
p.WindowStyle = ProcessWindowStyle.Hidden; //hide mode
Process.Start(p);

Is it safe for you to delete the destination folder before copying new contents to it?
Directory.Delete(#"c:\test\test");
Directory.Move(#"c:\test\movies",#"c:\test\test");

The most common 2 reasons why Directory.Move could fail are, if:
It's a different volume (you need to Copy/Delete)
It already exists (doesn't support overwrite by default)
Here is my simple solution for the second problem (overwrite):
public bool MoveDirectory(string sourceDirName, string destDirName, bool overwrite)
{
if (overwrite && Directory.Exists(destDirName))
{
var needRestore = false;
var tmpDir = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
try
{
Directory.Move(destDirName, tmpDir);
needRestore = true; // only if fails
Directory.Move(sourceDirName, destDirName);
return true;
}
catch (Exception)
{
if (needRestore)
{
Directory.Move(tmpDir, destDirName);
}
}
finally
{
Directory.Delete(tmpDir, true);
}
}
else
{
Directory.Move(sourceDirName, destDirName); // Can throw an Exception
return true;
}
return false;
}

You can use move method directly.
Directory.Move(#"c:\test\Movies\", #"c:\test\Test\");
The folder will be deleted and copied it into Test Folder.