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Removing part of DirectoryName

I'm trying to remove part of a path in a string but it doesn't actually remove anything. I'm not sure what I'm doing wrong in this method.
string path = AppDomain.CurrentDomain.BaseDirectory + "/FastDL-Generator-Input/";
DirectoryInfo d = new DirectoryInfo(path + "materials/");
FileInfo[] Files = d.GetFiles("*.*", SearchOption.AllDirectories);
foreach (FileInfo file in Files)
{
string filePath = file.DirectoryName.Replace(path, "");
status3.Text = filePath;
}
It doesn't run with any errors, but it's not removing anything. This is the output
"C:\Users\*****\source\repos\FastDL Generator\FastDL Generator\bin\Debug\FastDL-Generator-Input\materials\test"
It should be printing
"materials\test"
instead. If you can provide any advice, I would greatly appreciate it.

You're using a forward slash in your path, I ran your code on my machine using back slash and it worked as you expected.
Try this:
string path = AppDomain.CurrentDomain.BaseDirectory + "FastDL-Generator-Input\\";
DirectoryInfo d = new DirectoryInfo(path + "materials\\");
FileInfo[] Files = d.GetFiles("*.*", SearchOption.AllDirectories);
foreach (FileInfo file in Files)
{
string filePath = file.DirectoryName.Replace(path, "");
status3.Text = filePath;
}

You need to change these two lines:
string path = AppDomain.CurrentDomain.BaseDirectory + "/FastDL-Generator-Input/";
DirectoryInfo d = new DirectoryInfo(path + "materials/");
To this:
string path = AppDomain.CurrentDomain.BaseDirectory + "FastDL-Generator-Input\\";
DirectoryInfo d = new DirectoryInfo(path + "materials\\");
Note the change in direction of the slashes in the path.

convert a FileInfo array into a String array C#

I create a FileInfo array like this
try
{
DirectoryInfo Dir = new DirectoryInfo(DirPath);
FileInfo[] FileList = Dir.GetFiles("*.*", SearchOption.AllDirectories);
foreach (FileInfo FI in FileList)
{
Console.WriteLine(FI.FullName);
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
And this array holds all the file names in folder = DirPath
I thought of looping through the FileInfo array and copy it to a String array. Is this ok or is there a much cleaner method ?

Using LINQ:
FileList.Select(f => f.FullName).ToArray();
Alternatively, using Directory you can get filenames directly.
string[] fileList = Directory.GetFiles(DirPath, "*.*",
SearchOption.AllDirectories);

If you want to go the other way (convert string array into FileInfo's) you can use the following:
string[] files;
var fileInfos = files.Select(f => new FileInfo(f));
List<FileInfo> infos = fileInfos.ToList<FileInfo>();

the linq is a great soluction, but for the persons who don't want to use linq, i made this function:
static string BlastWriteFile(FileInfo file)
{
string blasfile = " ";
using (StreamReader sr = file.OpenText())
{
string s = " ";
while ((s = sr.ReadLine()) != null)
{
blasfile = blasfile + s + "\n";
Console.WriteLine();
}
}
return blasfile;
}

Try this one
DirectoryInfo directory = new DirectoryInfo("your path");
List<string> Files = (directory.GetFiles().Where(file => file.LastWriteTime >= date_value)).Select(f => f.Name).ToList();
If you don't want a filter with date, you can simply convert with the below code
List<string> logFiles = directory.GetFiles().Select(f => f.Name).ToList();
If you need the full path of the file, you can use FullName instead of Name.

Displaying desired files only in asp.net

DirectoryInfo Dir = new DirectoryInfo(Server.MapPath(strheadlinesid));
FileInfo[] FileList = Dir.GetFiles("*.txt", SearchOption.AllDirectories);
In the Place of *.txt ,I want to mention some more file extensions how can I do that.
I used another type of approach but I have a small problem in it when I use the FI as hyperlink it's giving total path.but I want to print only the file name not fullpath.
string supportedExtensions = "*.jpg,*.gif,*.png,*.bmp,*.jpe,*.jpeg,*.wmf,*.emf,*.xbm,*.ico,*.eps,*.tif,*.tiff,*.g01,*.g02,*.g03,*.g04,*.g05,*.g06,*.g07,*.g08";
foreach (string FI in Directory.GetFiles(Server.MapPath(strheadlinesid), "*.*", SearchOption.AllDirectories).Where(s => supportedExtensions.Contains(Path.GetExtension(s).ToLower())))
{
Response.Write("<td><a href= view5.aspx?file=" + strheadlinesid + "\\" + FI + " target=_self;> " +
FI + "</a></td>");
}

Try
string fileFilter = "*.wma,*.jpeg,*.txt";
string[] fileExt = fileFilter.Split(',');
FileInfo[] fileInfo = null;
DirectoryInfo dir = new DirectoryInfo("D:\\Test");
List<FileInfo[]> listFileInfo = new List<FileInfo[]>();
foreach (string strVar in fileExt)
{
fileInfo = dir.GetFiles(strVar, SearchOption.AllDirectories);
listFileInfo.Add(fileInfo);
}

C#:Getting all image files in folder

I am trying to get all images from folder but ,this folder also include sub folders. like /photos/person1/ and /photos/person2/ .I can get photos in folder like
path= System.IO.Directory.GetCurrentDirectory() + "/photo/" + groupNO + "/";
public List<String> GetImagesPath(String folderName)
{
DirectoryInfo Folder;
FileInfo[] Images;
Folder = new DirectoryInfo(folderName);
Images = Folder.GetFiles();
List<String> imagesList = new List<String>();
for (int i = 0; i < Images.Length; i++)
{
imagesList.Add(String.Format(#"{0}/{1}", folderName, Images[i].Name));
// Console.WriteLine(String.Format(#"{0}/{1}", folderName, Images[i].Name));
}
return imagesList;
}
But how can I get all photos in all sub folders? I mean I want to get all photos in /photo/ directory at once.

Have a look at the DirectoryInfo.GetFiles overload that takes a SearchOption argument and pass SearchOption.AllDirectories to get the files including all sub-directories.
Another option is to use Directory.GetFiles which has an overload that takes a SearchOption argument as well:
return Directory.GetFiles(folderName, "*.*", SearchOption.AllDirectories)
.ToList();

I'm using GetFiles wrapped in method like below:
public static String[] GetFilesFrom(String searchFolder, String[] filters, bool isRecursive)
{
List<String> filesFound = new List<String>();
var searchOption = isRecursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
foreach (var filter in filters)
{
filesFound.AddRange(Directory.GetFiles(searchFolder, String.Format("*.{0}", filter), searchOption));
}
return filesFound.ToArray();
}
It's easy to use:
String searchFolder = #"C:\MyFolderWithImages";
var filters = new String[] { "jpg", "jpeg", "png", "gif", "tiff", "bmp", "svg" };
var files = GetFilesFrom(searchFolder, filters, false);

There's a good one-liner solution for this on a similar thread:
get all files recursively then filter file extensions with LINQ
Or if LINQ cannot be used, then use a RegEx to filter file extensions:
var files = Directory.GetFiles("C:\\path", "*.*", SearchOption.AllDirectories);
List<string> imageFiles = new List<string>();
foreach (string filename in files)
{
if (Regex.IsMatch(filename, #"\.jpg$|\.png$|\.gif$"))
imageFiles.Add(filename);
}

I found the solution this Might work
foreach (string img in Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.Desktop),"*.bmp" + "*.jpg" + "SO ON"))

You need the recursive form of GetFiles:
DirectoryInfo.GetFiles(pattern, searchOption);
(specify AllDirectories as the SearchOption)
Here's a link for more information:
MSDN: DirectoryInfo.GetFiles

This allows you to use use the same syntax and functionality as Directory.GetFiles(path, pattern, options); except with an array of patterns instead of just one.
So you can also use it to do tasks like find all files that contain the word "taxes" that you may have used to keep records over the past year (xlsx, xls, odf, csv, tsv, doc, docx, pdf, txt...).
public static class CustomDirectoryTools {
public static string[] GetFiles(string path, string[] patterns = null, SearchOption options = SearchOption.TopDirectoryOnly) {
if(patterns == null || patterns.Length == 0)
return Directory.GetFiles(path, "*", options);
if(patterns.Length == 1)
return Directory.GetFiles(path, patterns[0], options);
return patterns.SelectMany(pattern => Directory.GetFiles(path, pattern, options)).Distinct().ToArray();
}
}
In order to get all image files on your c drive you would implement it like this.
string path = #"C:\";
string[] patterns = new[] {"*.jpg", "*.jpeg", "*.jpe", "*.jif", "*.jfif", "*.jfi", "*.webp", "*.gif", "*.png", "*.apng", "*.bmp", "*.dib", "*.tiff", "*.tif", "*.svg", "*.svgz", "*.ico", "*.xbm"};
string[] images = CustomDirectoryTools.GetFiles(path, patterns, SearchOption.AllDirectories);

You can use GetFiles
GetFiles("*.jpg", SearchOption.AllDirectories)

GetFiles("*.jpg", SearchOption.AllDirectories) has a problem at windows7. If you set the directory to c:\users\user\documents\, then it has an exception: because of windows xp, win7 has links like Music and Pictures in the Documents folder, but theese folders don't really exists, so it creates an exception. Better to use a recursive way with try..catch.

This will get list of all images from folder and sub folders and it also take care for long file name exception in windows.
// To handle long folder names Pri external library is used.
// Source https://github.com/peteraritchie/LongPath
using Directory = Pri.LongPath.Directory;
using DirectoryInfo = Pri.LongPath.DirectoryInfo;
using File = Pri.LongPath.File;
using FileInfo = Pri.LongPath.FileInfo;
using Path = Pri.LongPath.Path;
// Directory and sub directory search function
public void DirectoryTree(DirectoryInfo dr, string searchname)
{
FileInfo[] files = null;
var allFiles = new List<FileInfo>();
try
{
files = dr.GetFiles(searchname);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
if (files != null)
{
try
{
foreach (FileInfo fi in files)
{
allFiles.Add(fi);
string fileName = fi.DirectoryName + "\\" + fi.Name;
string orgFile = fileName;
}
var subDirs = dr.GetDirectories();
foreach (DirectoryInfo di in subDirs)
{
DirectoryTree(di, searchname);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
public List<String> GetImagesPath(String folderName)
{
var dr = new DirectoryInfo(folderName);
string ImagesExtensions = "jpg,jpeg,jpe,jfif,png,gif,bmp,dib,tif,tiff";
string[] imageValues = ImagesExtensions.Split(',');
List<String> imagesList = new List<String>();
foreach (var type in imageValues)
{
if (!string.IsNullOrEmpty(type.Trim()))
{
DirectoryTree(dr, "*." + type.Trim());
// output to list
imagesList.Add = DirectoryTree(dr, "*." + type.Trim());
}
}
return imagesList;
}

var files = new DirectoryInfo(path).GetFiles("File")
.OrderByDescending(f => f.LastWriteTime).First();
This could gives you the perfect result of searching file with its latest mod

C# copying multiple files with wildcards and keeping file names

I need to copy multiple files from a directory using a textfile that doesnt contain complete info.
NCR.txt:
Red
target directory has in it:
red1.txt
red3.txt
red44.txt
dest directory needs to have:
red1.txt
red3.txt
red44.txt
My code:
System.IO.Directory.CreateDirectory(#"C:\nPrep\" + textBox1.Text + "\\red");
if (checkBox3.Checked)
{
String[] file_names = File.ReadAllLines(#"C:\NCR.txt");
foreach (string file_name in file_names)
{
string[] files = Directory.GetFiles(textBox2.Text, file_name + "*.txt");
foreach (string file in files)
System.IO.File.Copy(file, #"C:\nPrep\" + textBox1.Text + "\\red\\");
}
}

//FileInfo & DirectoryInfo are in System.IO
//This is something you should be able to tweak to your specific needs.
static void CopyFiles(DirectoryInfo source,
DirectoryInfo destination,
bool overwrite,
string searchPattern)
{
FileInfo[] files = source.GetFiles(searchPattern);
//this section is what's really important for your application.
foreach (FileInfo file in files)
{
file.CopyTo(destination.FullName + "\\" + file.Name, overwrite);
}
}
This version is more copy-paste ready:
static void Main(string[] args)
{
DirectoryInfo src = new DirectoryInfo(#"C:\temp");
DirectoryInfo dst = new DirectoryInfo(#"C:\temp3");
/*
* My example NCR.txt
* *.txt
* a.lbl
*/
CopyFiles(src, dst, true);
}
static void CopyFiles(DirectoryInfo source, DirectoryInfo destination, bool overwrite)
{
List<FileInfo> files = new List<FileInfo>();
string[] fileNames = File.ReadAllLines("C:\\NCR.txt");
foreach (string f in fileNames)
{
files.AddRange(source.GetFiles(f));
}
if (!destination.Exists)
destination.Create();
foreach (FileInfo file in files)
{
file.CopyTo(destination.FullName + #"\" + file.Name, overwrite);
}
}

All suggestions were great and thansk for all the advise but this was perfect:
if (checkBox3.Checked)
{
string[] lines = File.ReadAllLines(#"C:\NCR.txt");
foreach (string line in lines)
{
string[] files = Directory.GetFiles(textBox2.Text, line + "*.txt");
foreach (string file in files)
{
FileInfo file_info = new FileInfo(file);
File.Copy(file, #"C:\InPrep\" + textBox1.Text + "\\text\\" + file_info.Name);
}
}
}

string sourceDir = #"c:\";
string destDir = #"c:\TestDir";
var r = Directory.GetFiles(sourceDir, "red*.txt"); //Replace this part with your read from notepad file
foreach (var s in r)
{
var sourceFile = new FileInfo(s);
sourceFile.CopyTo(destDir + "\\" + s.Replace(sourceDir, string.Empty));
}