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Check for files and creating folders and moving files in C#

I have no problems when I want to create a new folder
I'm working with
Directory.CreateDirectory
Now I'm trying to get all image files from my desktop and I want to move all images to that folder which was created with Directory.CreateDirectory
I've testet file.MoveTo
from here
FileInfo file = new FileInfo(#"C:\Users\User\Desktop\test.txt");
to here
file.MoveTo(#"C:\Users\User\Desktop\folder\test.txt");
This works perfect.
Now I want to do that with all the image files from my dekstop
(Directory.CreateDirectory(#"C:\Users\User\Desktop\Images");)
How could I do that?

Example code of getting images with certain extentions from one root folder:
static void Main(string[] args)
{
// path to desktop
var desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
//get file extentions by speciging the needed extentions
var images = GetFilesByExtensions(new DirectoryInfo(desktopPath) ,".png", ".jpg", ".gif");
// loop thrue the found images and it will copy it to a folder (make sure the folder exists otherwise filenot found exception)
foreach (var image in images)
{
// if you want to move it to another directory without creating a copy use:
image.MoveTo(desktopPath + "\\folder\\" + image.Name);
// if you want to move a copy of the image use this
File.Copy(desktopPath + "\\"+ image.Name, desktopPath + "\\folder\\" + image.Name, true);
}
}
public static IEnumerable<FileInfo> GetFilesByExtensions(DirectoryInfo dir, params string[] extensions)
{
if (extensions == null)
throw new ArgumentNullException("extensions");
var files = dir.EnumerateFiles();
return files.Where(f => extensions.Contains(f.Extension));
}

Please try this:
You can filter files in a specific directory and then looop through search results to move each file, you might be able to modify search pattern to match on a number of different image file formats
var files = Directory.GetFiles("PathToDirectory", "*.jpg");
foreach (var fileFound in files)
{
//Move your files one by one here
FileInfo file = new FileInfo(fileFound);
file.MoveTo(#"C:\Users\User\Desktop\folder\" + file.Name);
}

Copy files from directory recursively smallest first

I want to copy all files in a directory to a destination folder using Visual C# .NET version 3.5, which can be done pretty easily (taken from this answer):
private static void Copy(string sourceDir, string targetDir)
{
Directory.CreateDirectory(targetDir);
foreach (var file in Directory.GetFiles(sourceDir))
File.Copy(file, Path.Combine(targetDir, Path.GetFileName(file)));
foreach (var directory in Directory.GetDirectories(sourceDir))
Copy(directory, Path.Combine(targetDir, Path.GetFileName(directory)));
}
Now, there's one little problem here: I want it to sort all files smallest first, so if the source path is a removable drive, which gets plugged out after some time, it would still have most possible data copied. With upper algorithm, if it takes a directory containing big files first and continues with a directory containing many smaller ones afterwards, there is the chance that the user will plug his drive out while the software is still copying the big file, and nothing will stay on the drive except the incomplete big file.
My idea was to do multiple loops: First, every filepath would be put in a dictionary including its size, then this dictionary would get sorted, and then every file would be copied from source to destination (including folder creation).
I'm afraid this is not a very neat solution, since looping two times about the same just doesn't seem right to me. Also, I'm not sure if my dictionary can store that much information, if the source folder has got too many different files and subfolders.
Are there any better options to choose from?

You could use a simpler method based on the fact that you can get all the files in a directory subtree just asking for them without using recursion.
The missing piece of the problem is the file size. This information could be obtained using the DirectoryInfo class and the FileInfo class while the ordering is just a Linq instruction applied to the sequence of files as in the following example.
private static void Copy(string sourceDir, string targetDir)
{
DirectoryInfo di = new DirectoryInfo(sourceDir);
foreach (FileInfo fi in di.GetFiles("*.*", SearchOption.AllDirectories).OrderBy(d => d.Length))
{
string leftOver = fi.DirectoryName.Replace(sourceDir, "");
string destFolder = Path.Combine(targetDir, leftOver);
// Because the files are listed in order by size
// we could copy a file deep down in the subtree before the
// ones at the top of the sourceDir
// Luckily CreateDirectory doesn't throw if the directory exists
// and automatically creates all the intermediate folders required
Directory.CreateDirectory(destFolder);
// Just write the intended copy parameters as a proof of concept
Console.WriteLine($"{fi.Name} with size = {fi.Length} -> Copy from {fi.DirectoryName} to {Path.Combine(destFolder, fi.Name)}");
}
}
In this example I have changed the File.Copy method with a Console.WriteLine just to have a proof of concept without copying anything, but the substitution is trivial.
Notice also that it is better to use EnumerateFiles instead of GetFiles as explained in the MSDN documentation

I hope this helps!
First; get all files from the source directory, with recursion being optional. Then proceed to copy all files ordered by size to the target directory.
void CopyFiles(string sourceDir, string targetDir, bool recursive = false)
{
foreach (var file in GetFiles(sourceDir, recursive).OrderBy(f => f.Length))
{
var subDir = file.DirectoryName
.Replace(sourceDir, String.Empty)
.TrimStart(Path.DirectorySeparatorChar);
var fullTargetDir = Path.Combine(targetDir, subDir);
if (!Directory.Exists(fullTargetDir))
Directory.CreateDirectory(fullTargetDir);
file.CopyTo(Path.Combine(fullTargetDir, file.Name));
}
}
IEnumerable<FileInfo> GetFiles(string directory, bool recursive)
{
var files = new List<FileInfo>();
if (recursive)
{
foreach (var subDirectory in Directory.GetDirectories(directory))
files.AddRange(GetFiles(subDirectory, true));
}
foreach (var file in Directory.GetFiles(directory))
files.Add(new FileInfo(file));
return files;
}

How to read multiple files from server into c#

I want to know how to read multiple (about 500-1000) text files which are located on a server.
So far, I've written code for a program that only reads a single text file.
Here's how I'm currently reading a single file.
public void button1_Click(object sender, EventArgs e)
{
// Reading/Inputing column values
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string[] fileLines = File.ReadAllLines(ofd.FileName);
I would like to get rid of the open file dialog box, and let the program automatically read the 500-1000 text files where are located in the sever.
I'm thinking something along the lines of
for (int i =0; i<numFiles; i++)
{
//just use string[] fileLines =File.ReadAllLines()
//how would i specify the path for multiple files?
}
Questions are then:
How would I approach this?
How exactly should I get the number of files?
(I'm guessing I'd have to read the server file which contains them.)

You can use Directory.GetFiles(string path) to get all files from a certain directory. You can then use a foreach loop to iterate through all the files in that directory and do your processing.

You can use recursion to loop through all directories. Using Directory.EnumerateFiles also allows you to use a foreach loop so you don't have to worry about the file count.
private static void ReadAllFilesStartingFromDirectory(string topLevelDirectory)
{
const string searchPattern = "*.txt";
var subDirectories = Directory.EnumerateDirectories(topLevelDirectory);
var filesInDirectory = Directory.EnumerateFiles(topLevelDirectory, searchPattern);
foreach (var subDirectory in subDirectories)
{
ReadAllFilesStartingFromDirectory(subDirectory);//recursion
}
IterateFiles(filesInDirectory, topLevelDirectory);
}
private static void IterateFiles(IEnumerable<string> files, string directory)
{
foreach (var file in files)
{
Console.WriteLine("{0}", Path.Combine(directory, file));//for verification
try
{
string[] lines = File.ReadAllLines(file);
foreach (var line in lines)
{
//Console.WriteLine(line);
}
}
catch (IOException ex)
{
//Handle File may be in use...
}
}
}
Also note Directory.EnumerateFiles provides overload that lets you provide a search pattern to narrow the scope of the files.

How you go about getting your files depends on if they are all located in the same directory of if you'll need to recursively search through a directory and all child directories. Directory.GetFiles is where you want to start. It has 3 overloads seen here. So you might try something like this:
string path = "\mypath\tosomehwere";
string searchPattern = "*.txt";
string[] MyFiles = Directory.GetFiles(path, searchPattern, SearchOption.AllDirectories);
Then just loop through the string array and proccess each file as you would normally.
foreach (string filePath in MyFiles)
{
MyFileProcessMethod(filePath)
}
Path.GetFileName(filePath) will return the individual text file name should you need it for your processing requirements.

Find all files in a folder

I am looking to create a program that finds all files of a certain type on my desktop and places them into specific folders, for example, I would have all files with .txt into the Text folder.
Any ideas what the best way would be to accomplish this? Thanks.
I have tried this:
string startPath = #"%userprofile%/Desktop";
string[] oDirectories = Directory.GetDirectories(startPath, "");
Console.WriteLine(oDirectories.Length.ToString());
foreach (string oCurrent in oDirectories)
Console.WriteLine(oCurrent);
Console.ReadLine();
It was not successful in finding all of the files.

A lot of these answers won't actually work, having tried them myself. Give this a go:
string filepath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
DirectoryInfo d = new DirectoryInfo(filepath);
foreach (var file in d.GetFiles("*.txt"))
{
Directory.Move(file.FullName, filepath + "\\TextFiles\\" + file.Name);
}
It will move all .txt files on the desktop to the folder TextFiles.

First off; best practice would be to get the users Desktop folder with
string path = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
Then you can find all the files with something like
string[] files = Directory.GetFiles(path, "*.txt", SearchOption.AllDirectories);
Note that with the above line you will find all files with a .txt extension in the Desktop folder of the logged in user AND all subfolders.
Then you could copy or move the files by enumerating the above collection like
// For copying...
foreach (string s in files)
{
File.Copy(s, "C:\newFolder\newFilename.txt");
}
// ... Or for moving
foreach (string s in files)
{
File.Move(s, "C:\newFolder\newFilename.txt");
}
Please note that you will have to include the filename in your Copy() (or Move()) operation. So you would have to find a way to determine the filename of at least the extension you are dealing with and not name all the files the same like what would happen in the above example.
With that in mind you could also check out the DirectoryInfo and FileInfo classes.
These work in similair ways, but you can get information about your path-/filenames, extensions, etc. more easily
Check out these for more info:
http://msdn.microsoft.com/en-us/library/system.io.directory.aspx
http://msdn.microsoft.com/en-us/library/ms143316.aspx
http://msdn.microsoft.com/en-us/library/system.io.file.aspx

You can try with Directory.GetFiles and fix your pattern
string[] files = Directory.GetFiles(#"c:\", "*.txt");
foreach (string file in files)
{
File.Copy(file, "....");
}
Or Move
foreach (string file in files)
{
File.Move(file, "....");
}
http://msdn.microsoft.com/en-us/library/wz42302f

C# Recursive Folder/File scan with Size,Path,Creation,FileVersion to txt

I am looking for a recursive function that scan a specific folder and send result in a text file.
I would like to list in a text file all files and folder with size, path, creation date, file version if existing but I have no idea on how to proceed.
I found some way to scan recursively but not to recover all needed information.

You can do the following,
GetFileInfo(string dir)
{
try
{
FileInfo info = null;
foreach (string d in Directory.GetDirectories(sDir))
{
foreach (string file in Directory.GetFiles(d))
{
info = new FileInfo(file);
//get all information using info here
}
GetFileInfo(d);
}
}
catch (System.Exception excpt)
{
Console.WriteLine(excpt.Message);
}
}

Use the System.IO.FileInfo object and System.IO.DirectoryInfo object....other than that, show us what you've tried.

You can list a folder using System.IO.DirectoryInfo and System.IO.FileInfo as ganders said.If you can list one folder's content the rest is simple recursion.The idea is while listing root directory if one item in the root directory is a directory call the same function on this directory.