Given a filesystem path, is there a shorter way to extract the filename without its extension?

Question

I program in WPF C#. I have e.g. the following path:

C:\Program Files\hello.txt

and I want to extract hello from it.

The path is a string retrieved from a database. Currently I'm using the following code to split the path by '\' and then split again by '.':

string path = "C:\\Program Files\\hello.txt";
string[] pathArr = path.Split('\\');
string[] fileArr = pathArr.Last().Split('.');
string fileName = fileArr.Last().ToString();

It works, but I believe there should be shorter and smarter solution to that. Any idea?

Solution 1

Path.GetFileName

Returns the file name and extension of a file path that is represented by a read-only character span.

---

Path.GetFileNameWithoutExtension

Returns the file name without the extension of a file path that is represented by a read-only character span.

---

The Path class is wonderful.

Solution 2

try

fileName = Path.GetFileName (path);

http://msdn.microsoft.com/de-de/library/system.io.path.getfilename.aspx

Solution 3

try

System.IO.Path.GetFileNameWithoutExtension(path); 

demo

string fileName = @"C:\mydir\myfile.ext";
string path = @"C:\mydir\";
string result;

result = Path.GetFileNameWithoutExtension(fileName);
Console.WriteLine("GetFileNameWithoutExtension('{0}') returns '{1}'", 
    fileName, result);

result = Path.GetFileName(path);
Console.WriteLine("GetFileName('{0}') returns '{1}'", 
    path, result);

// This code produces output similar to the following:
//
// GetFileNameWithoutExtension('C:\mydir\myfile.ext') returns 'myfile'
// GetFileName('C:\mydir\') returns ''

https://msdn.microsoft.com/en-gb/library/system.io.path.getfilenamewithoutextension%28v=vs.80%29.aspx

Solution 4

You can use Path API as follow:

 var filenNme = Path.GetFileNameWithoutExtension([File Path]);

More info: Path.GetFileNameWithoutExtension

Solution 5

var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(path);

Path.GetFileNameWithoutExtension

View more solutions

Comments

[jbyrd]

In my system, Path.GetFileName("C:\\dev\\some\\path\\to\\file.cs") is returning the same string and not converting it to "file.cs" for some reason. If I copy/paste my code into an online compiler (like rextester.com), it works...?

[bhuvin]

+1 since this might be Helpful in the case wherein this works as a Backup wherein the file name contains invalid characters [ <, > etc in Path.GetInvalidChars()].

[Nolmë Informatique]

It seems Path.GetFileNameWithoutExtension() is not working with a file extension > 3 characters.

[s952163]

This is actually quite useful when working with path on UNIX ftp servers.

[Lance U. Matthews]

The question is asking how to extract the file name without extension from a file path. This, instead, is retrieving the immediate child files of a directory that may or may not be specified by a configuration file. Those are not really close to the same thing.

[Lance U. Matthews]

I'm surprised that FileVersionInfo can be used on files that have no version information. Note that GetVersionInfo() can only be used on paths that reference a file that already exists. While either class can be used to get the file name, the question also asked to remove the extension, too.