I am making project on getting all text files from a selected drive. The thing is I am getting names of all text files along with path but all I need is name. I don't want to even get the extension, all I want is name of that text file. I have searched all over the internet but couldn't find the right answer. I am storing all those names in a listbox. here is my code:
String[] dir1 = System.IO.Directory.GetDirectories(#"F:\");
for (int i = 0; i < dir1.Length; i++)
{
FileAttributes attributes = File.GetAttributes(dir1[i]);
if ((attributes & FileAttributes.Hidden) != fileAttributes.Hidden)
{
string folder = #""+ dir1[i];
txtfiles = Directory.GetFiles(folder, "*.txt");
listBox1.Items.AddRange(txtfiles);
}
}
How can I get only names, instead of whole path and extension?
The Path.GetFileNameWithoutExtension method will do this for you.
https://msdn.microsoft.com/en-us/library/system.io.path.getfilenamewithoutextension(v=vs.110).aspx
Returns the file name of the specified path string without the extension.
Pass the results of GetFiles into the method and it should return what you need.
Take a look at System.IO.Path.GetFileNameWithoutExtension()
You could do something like
txtfiles = Directory.GetFiles(folder, "*.txt");
var fileNames = txtfiles.Select(System.IO.Path.GetFileNameWithoutExtension).ToList();
You need to use Path.GetFileName method which will just extract the file name only from the path back, so what you can do is project the txtfiles to get the collection of just filename like:
listBox1.Items.AddRange(txtfiles.Select(file=>Path.GetFileName(file));
and if you only need path, not actually reading them, you can use EnumerateFiles method which would be better in memory performance which would be :
listBox1.Items.AddRange(txtDirectory.EnumerateFiles(folder, "*.txt")
.Select(file=>Path.GetFileName(file))
);
Also if you only need name of file without extension then you can do as Valuator answer suggested.
Related
I want to create a program that gets all the .pdf-filenames (ex: test.pdf -> test) and creates an folder with that name. Also the foldername should be cropped after the first "-" (ex: A539B2AA3-GG-81234278 -> A539B2AA3).
This is the code I have made yet, but I have no clue how to proceed. I'm still a beginner, trying to learn C#:
string path = #"C:\pdfs\";
string[] filenames;
int lengtharray;
filenames = Directory.GetFiles(path, "*", SearchOption.TopDirectoryOnly)
.Where(s => (Path.GetExtension(s).ToLower() == ".pdf")).ToArray();
lengtharray = filenames.Length;
If someone can help me, I would be very happy.
Sincerely,
breadhead
You can use this code.
1) Directory.GetFiles has a wildcard support, so you can use *.pdf to search for file.
2) I added some validation in the loop, in case there are PDF file that does not have -.
string path = #"C:\pdfs\";
foreach(var file in Directory.GetFiles(path, "*.pdf", SearchOption.TopDirectoryOnly))
{
var newName = Path.GetFileName(file).Split('-');
if (!newName.Any())
continue;
Directory.CreateDirectory(Path.Combine(path,newName[0]));
}
You can simplify your file query, use filenames = Directory.GetFiles(path, "*.pdf", .... and skip the Where()-part. To loop through your list, you can use a foreach (file in filenames). As mentioned you can get the new filename with file.Split("-")[0] or with a regular expression. Then create a directory with Directory.CreateDirectory and move the file in with System.IO.File.Move("oldfilename", "newfilename");. Now you have all the bricks and you only need to glue them together
I have a folder structure similar to this:
HostnameA->DateTimeA->hashdumpDateTimeA.txt
HostnameA->DateTimeB->hashdumpDateTimeB.txt
HostnameA->DateTimeC->hashdumpDateTimeC.txt
HostnameA->DateTimeD->hashdumpDateTimeD.txt
My Goal:
Given a folder(in this case HostnameA) i need to:
1) Get each hashdumpDateTime.txt filename and place it in a String array -Assumed the file always exist in all folder-
2) Generate DropDownBox using the array (I can figure this out)
3) When user selects a filename via dropdownbox, it will fill my datagridview with the
contents (I can figure this out)
So my problem really is the #1 since i don't know how to make a loop to check the filename coming from a HostnameA folder, I need to know this since the DateTime of these filenames changes
I really appreciate the future help, thanks and cheers =)
You can use Directory.GetFiles method
var files = Directory.GetFiles("directoryPath","*.txt",SearchOption.AllDirectories)
That will give you all file names.If you don't want just names for example if you want file's full path, and some other attributes (like CreationTime, LastAccessTime) use DirectoryInfo class
DirectoryInfo di = new DirectoryInfo("path");
var files = di.GetFiles("*.txt",SearchOption.AllDirectories)
That will return an array of FileInfo instances.Then use a loop and do what you want with the files.
You doesn't need to know the exact name of DirectoryName or FileName, using a for loop and a searchPattern instead.
private string[] GetFileNames(string folder)
{
var files = new List<string>();
foreach (var dateTimeFolder in Directory.GetDirectories(folder))
{
files.AddRange(Directory.GetFiles(dateTimeFolder, "hashdump*.txt"));
}
return files.ToArray();
}
I wish to delete image files. The files are named somefile.jpg and somefile_t.jpg, the file with the _t on the end is the thumbnail. With this delete operation I wish to delete both the thumbnail and original image.
The code works up until the foreach loop, where the GetFiles method returns nothing.
The string.Substring operation successfully returns just the file name with no extension and no _t e.g: somefile.
There are no invalid characters in the file names I wish to delete.
Code looks good to me, only thing I can think of is that I am somehow not using the searchpattern
function properly.
filesource = "~/somedir/somefile_t.jpg"
var dir = Server.MapPath(filesource);
FileInfo FileToDelete = new FileInfo(dir);
if (FileToDelete.Exists)
{
var FileName = Path.GetFileNameWithoutExtension(FileToDelete.Name);
foreach(FileInfo file in FileToDelete.Directory.GetFiles(FileName.Substring(0, FileName.Length - 2), SearchOption.TopDirectoryOnly).ToList())
{
file.Delete();
}
}
DirectoryInfo.GetFiles Method (String, SearchOption)
You need to ensure that the first parameter, searchPattern, is proper. In you're case you are supplying FileName.Substring(0, FileName.Length - 2), which would be "somefile". The reason the method returns nothing is because you are looking for files literally named somefile. What you meant to do was to use a wildcard in addition to the base filename: String.Concat(FileName.Substring(0, FileName.Length - 2), "*"), which would be "somefile*" ... at least I think you're looking for that searchPattern as opposed to any other one.
This code works for me:
var file_path = #"K:\Work\IoCToy\IoCToy\image.jpg";
var dir = Path.GetDirectoryName(file_path);
var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(file_path);
var files = Directory.EnumerateFiles(dir, string.Format("{0}*", fileNameWithoutExtension), SearchOption.TopDirectoryOnly);
Of course, you have to delete the files by the returned file names. I am assuming here that your folder contains only the image and the thumbnail file which start with the "image" substring.
Is there an easy way to get a list of filenames that matach a filename pattern including references to parent directory? What I want is for "..\ThirdParty\dlls\*.dll" to return a collection like ["..\ThirdParty\dlls\one.dll", "..\ThirdParty\dlls\two.dll", ...]
I can find several questions relating matching files names including full path, wildcards, but nothing that includes "..\" in the pattern. Directory.GetFiles explicitly disallows it.
What I want to do with the names is to include them in a zip archive, so if there is a zip library that can understand relative paths like this I am happier to use that.
The pattern(s) are coming from an input file, they are not known at compile time. They can get quite complex, e.g ..\src\..\ThirdParty\win32\*.dll so parsing is probably not feasible.
Having to put it in zip is also the reason I am not very keen on converting the pattern to fullpath, I do want the relative paths in zip.
EDIT: What I am looking for really is a C# equivalent of /bin/ls.
static string[] FindFiles(string path)
{
string directory = Path.GetDirectoryName(path); // seperate directory i.e. ..\ThirdParty\dlls
string filePattern = Path.GetFileName(path); // seperate file pattern i.e. *.dll
// if path only contains pattern then use current directory
if (String.IsNullOrEmpty(directory))
directory = Directory.GetCurrentDirectory();
//uncomment the following line if you need absolute paths
//directory = Path.GetFullPath(directory);
if (!Directory.Exists(directory))
return new string[0];
var files = Directory.GetFiles(directory, filePattern);
return files;
}
There is the Path.GetFullPath() function that will convert from relative to absolute. You could use it on the path part.
string pattern = #"..\src\..\ThirdParty\win32\*.dll";
string relativeDir = Path.GetDirectoryName(pattern);
string absoluteDir = Path.GetFullPath(relativeDir);
string filePattern = Path.GetFileName(pattern);
foreach (string file in Directory.GetFiles(absoluteDir, filePattern))
{
}
If I understand you correctly you could use Directory.EnumerateFiles in combination with a regular expression like this (I haven't tested it though):
var matcher = new Regex(#"^\.\.\\ThirdParty\\dlls\\[^\\]+.dll$");
foreach (var file in Directory.EnumerateFiles("..", "*.dll", SearchOption.AllDirectories)
{
if (matcher.IsMatch(file))
yield return file;
}
I have a directory that contains jpg,tif,pdf,doc and xls. The client DB conly contains the file names without extension. My app has to pick up the file and upload the file. One of the properties of the upload object is the file extension.
Is there a way of getting file extension if all i have is the path and name
eg:
C:\temp\somepicture.jpg is the file and the information i have through db is
c:\temp\somepicture
Use Directory.GetFiles(fileName + ".*"). If it returns just one file, then you find the file you need. If it returns more than one, you have to choose which to upload.
Something like this maybe:
DirectoryInfo D = new DirectoryInfo(path);
foreach (FileInfo fi in D.GetFiles())
{
if (Path.GetFileNameWithoutExtension(fi.FullName) == whatever)
// do something
}
You could obtain a list of all of the files with that name, regardless of extension:
public string[] GetFileExtensions(string path)
{
System.IO.DirectoryInfo directory =
new System.IO.DirectoryInfo(System.IO.Path.GetDirectoryName(path));
return directory.GetFiles(
System.IO.Path.GetFileNameWithoutExtension(path) + ".*")
.Select(f => f.Extension).ToArray();
}
Obviously, if you have no other information and there are 2 files with the same name and different extensions, you can't do anything (e.g. there is somepicture.jpg and somepicture.png at the same time).
On the other hand, usually that won't be the case so you can simply use a search pattern (e.g. somepicture.*) to find the one and only (if you're lucky) file.
Search for files named somepicture.* in that folder, and upload any that matches ?
Get the lowest level folder for each path. For your example, you would have:
'c:\temp\'
Then find any files that start with your filename in that folder, in this case:
'somepicture'
Finally, grab the extension off the matching filename. If you have duplicates, you would have to handle that in a unique way.
You would have to use System.IO.Directory.GetFiles() and iterate through all the filenames. You will run into issues when you have a collision like somefile.jpg and somefile.tif.
Sounds like you have bigger issues than just this and you may want to make an argument to store the file extension in your database as well to remove the ambiguity.
you could do something like this perhaps....
DirectoryInfo di = new DirectoryInfo("c:/temp/");
FileInfo[] rgFiles = di.GetFiles("somepicture.*");
foreach (FileInfo fi in rgFiles)
{
if(fi.Name.Contains("."))
{
string name = fi.Name.Split('.')[0].ToString();
string ext = fi.Name.Split('.')[1].ToString();
System.Console.WriteLine("Extension is: " + ext);
}
}
One more, with the assumption of no files with same name but different extension.
string[] files = Directory.GetFiles(#"c:\temp", #"testasdadsadsas.*");
if (files.Length >= 1)
{
string fullFilenameAndPath = files[0];
Console.WriteLine(fullFilenameAndPath);
}
From the crippled file path you can get the directory path and the file name:
string path = Path.GetDirectoryName(filename);
string name = Path.GetFileName(filename);
Then you can get all files that matches the file name with any extension:
FileInfo[] found = new DirectoryInfo(path).GetFiles(name + ".*");
If the array contains one item, you have your match. If there is more than one item, you have to decide which one to use, or what to do with them.
All the pieces are here in the existing answers, but just trying to unify them into one answer for you - given the "guaranteed unique" declaration you're working with, you can toss in a FirstOrDefault since you don't need to worry about choosing among multiple potential matches.
static void Main(string[] args)
{
var match = FindMatch(args[0]);
Console.WriteLine("Best match for {0} is {1}", args[0], match ?? "[None found]");
}
private static string FindMatch(string pathAndFilename)
{
return FindMatch(Path.GetDirectoryName(pathAndFilename), Path.GetFileNameWithoutExtension(pathAndFilename));
}
private static string FindMatch(string path, string filename)
{
return Directory.GetFiles(path, filename + ".*").FirstOrDefault();
}
Output:
> ConsoleApplication10 c:\temp\bogus
Best match for c:\temp\bogus is [None found]
> ConsoleApplication10 c:\temp\7z465
Best match for c:\temp\7z465 is c:\temp\7z465.msi
> ConsoleApplication10 c:\temp\boot
Best match for c:\temp\boot is c:\temp\boot.wim