Removing file extension before adding to listBox c#

Question

I'm currently creating a note taking application. I'm trying to add items to a listbox without their file extensions, I have tried GetAllFilesWithoutExtensions, but no luck. I'm currently able to add them but can't seem to remove the extension. Any advice would be greatly appreciated...

 DirectoryInfo dir = new DirectoryInfo("../Debug/");
 FileInfo[] files = dir.GetFiles("*.txt");

 foreach (FileInfo file in files)
 {
    listBox1.Items.Add(file);
 }

have you tried this? `Path.GetFileNameWithoutExtension(file.Name)` — Nikola.Lukovic, Apr 15 '16 at 09:36
Hi @Nikola.Lukovic, Yes I have, unfortunately, it doesn't work. — JonnyAppleseed, Apr 15 '16 at 09:40
can you show us what output you get when you run `Path.GetFileNameWithoutExtension(file.Name)` ? — Nikola.Lukovic, Apr 15 '16 at 09:41
Ok, when "Path.GetFileNameWithoutExtension(file.Name)" is used, the program is unable to load the associated .txt files into a richTextBox... Which works with the extension... I suppose I'm just wanting to hide the extension. — JonnyAppleseed, Apr 15 '16 at 09:48
This __use__ of the `ListBox` should have been in the original question; then you wouldn't have gotten all those answers that are rigth to the letter but missing the point ;-) — TaW, Apr 15 '16 at 10:11

score 7 · Answer 1 · answered Apr 15 '16 at 09:37

7

You can use LINQ and System.IO.Path.GetFileNameWithoutExtension

var fileNamesWithoutExtension = files
    .Select(fi => System.IO.Path.GetFileNameWithoutExtension(fi.Name));
foreach(string fn in fileNamesWithoutExtension)
{
    // ...
}

answered Apr 15 '16 at 09:37

Tim Schmelter

450,073
74
686
939

score 1 · Answer 2 · answered Apr 15 '16 at 09:37

1

You could use System.IO.Path.GetFileNameWithoutExtension(string)

See MSDN

answered Apr 15 '16 at 09:37

grmbl

2,514
4
29
54

TaW · Answer 3 · 2016-04-15T10:09:33.630

Create a class to help you:

class FInfo
{
    public FileInfo Info { get; set; }

    public FInfo (FileInfo fi)    { Info = fi; }

    public override string ToString()
    {
        return Path.GetFileNameWithoutExtension(Info.FullName);
    }
}

Now fill the ListBox with instances of that class:

DirectoryInfo dir = new DirectoryInfo(yourPath);
FileInfo[] files = dir.GetFiles(yourFilter);

foreach (FileInfo file in files) listBox1.Items.Add(new FInfo(file));

Now you can access the full FileInfo data:

private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    FInfo fi = listBox1.SelectedItem as FInfo;
    if (fi != null) Console.WriteLine(fi.Info.FullName); // do your thing here!
}

And the ListBox will use the ToString method to display only the file names without path or extension..

Removing file extension before adding to listBox c#

3 Answers3