Remove file type from string

Question

I'm calling a list of strings from a server.

At the moment I'm getting the full name and file extension like:

Image1.jpg

image2.png

test_folder.folder

I have some code that relies on the knowing what the extension is, however I also need to access the name of the item I've selected with out the extension.

So far my two attempts have been the following:

_clickedFolder = listBox1.SelectedItem.ToString() - "folder";
_clickedFolder.Trim(new Char[] { '.folder' });

but neither of these work.

What is the correct way to take the file extension away and just have the file name display?

@Sean Its seems like we are doing your homework step by step ? — Mauricio Gracia Gutierrez, Sep 03 '13 at 22:04
@MauricioGracia I agree with you,Sean asked two question in no more than 5 minutes. — devavx, Sep 03 '13 at 22:06

score 17 · Answer 1 · answered Sep 03 '13 at 21:57

17

Use the Path class:

string fnWithoutExtension = Path.GetFileNameWithoutExtension(path);

or

string extension = Path.GetExtension(path);

answered Sep 03 '13 at 21:57

Tim Schmelter

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score 3 · Answer 2 · answered Sep 03 '13 at 21:59

3

You can try this:

string name = "set this to file name";
name = name.Substring(0,name.LastIndexOf('.'));

answered Sep 03 '13 at 21:59

ismellike

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score 0 · Answer 3 · answered Sep 03 '13 at 22:01

Try this;

    private void listBox1_SelectionIndexChanged(object sender,EventArgs e)
    {
    string item = listBox1.SelectedItem.ToString();
    int index = item.LastIndexOf('.');
    if (index >= 0)//It's a valid file
    {
        string filename = item.Substring(0, index );
        MessageBox.Show(filename);
    }
    else if (index == -1)//Not a valid file
    {
        MessageBox.Show("The selected file is invalid.");
    }
    }

Remove file type from string

3 Answers3