String manipulation in C#. How to extract a string from a string?

Question

My code:

string strFilePath = textBox1.text;

The textbox's text typically looks like C:\today\abc def.txt.

I want to isolate 'abc def' into its own string. That is, everything before '.txt' but after the last '\'.

The string manipulation that I'm familiar with uses Split and Last, but neither are applicable here (I think).

Is it abc def.txt the name of the file or the folder is called abc and the file def.txt? — Steve
– Steve, Commented Oct 4, 2013 at 20:00

SLaks · Accepted Answer · 2013-10-04 19:59:13Z

8

You're looking for Path.GetFileNameWithoutExtension().

answered Oct 4, 2013 at 19:59

SLaks

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2 Comments

Lee Harrison Over a year ago

In the current context, this is a bullseye

MrPatterns Over a year ago

Yes, this is exactly what I was hoping/looking for. Thank you!

Soner Gönül · Accepted Answer · 2013-10-04 20:07:04Z

0

You can use String.LastIndexOf and String.SubString methods like;

string s = @"C:\today\abc def.txt";
string ss = s.Substring(s.LastIndexOf('\\') + 1, s.IndexOf('.') - s.LastIndexOf('\\') - 1);
Console.WriteLine(ss);

Output will be;

abc def

Here a DEMO.

Or easy way, just use Path.GetFileNameWithoutExtension method

Returns the file name of the specified path string without the extension.

string name = Path.GetFileNameWithoutExtension(@"C:\today\abc def.txt");
Console.WriteLine(name); //abc def

edited Oct 4, 2013 at 20:07

answered Oct 4, 2013 at 20:02

Soner Gönül

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