How to get lastindexof string only text

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If the actual folder names are unknown how could i then only get the last index text in this example only get Sub2?
\\Sub1\\Sub2\\

In this example
\\Sub1\\Sub2\\Sub3\\
Only get Sub3 ?

Posted 8-Feb-15 23:31pm

Kurac1

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/\jmot · Answer 1 · 2015-02-09T00:08:00

Solution 3

use DirectoryInfo.Name Property.

C#

string str = @"\sub1\sub2\sub3";
string dirName = new DirectoryInfo(str).Name;

ref.
https://msdn.microsoft.com/en-us/library/system.io.directoryinfo.name.aspx[^]
http://stackoverflow.com/questions/5229292/get-folder-name-from-full-file-path-c-asp-net[^]

Posted 9-Feb-15 0:08am

/\jmot

Comments

CHill60 9-Feb-15 6:29am

5'd. Nice and elegant. Kurac1 - you will need "using System.IO;"

/\jmot 9-Feb-15 12:41pm

thank you. :)

CHill60 · Answer 2 · 2015-02-08T23:37:00

Solution 1

You have given yourself a clue in your question - use strng.LastIndexOf[^] method.

For example:

C#

string str = @"\sub1\sub2\sub3";
var x = str.LastIndexOf('\\');
Console.WriteLine(str.Substring(x + 1, str.Length - x - 1));

Posted 8-Feb-15 23:37pm

CHill60

Comments

Kurac1 9-Feb-15 6:07am

i dont get the value in debug it gets "" (empty)

CHill60 9-Feb-15 6:29am

When I run it, it works fine. Can you post the code you used?

nagendrathecoder · Answer 3 · 2015-02-08T23:37:00

Solution 2

Use string.Split on "\\" with stringsplitoption "RemoveEmptyEntries".
Then you can fetch last item of string array.
For e.g.

C#

string[] s = "\\Sub1\\Sub2\\Sub3\\".Split(new char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);

Then your desired string would be in

C#

s[s.Length - 1];

Posted 8-Feb-15 23:37pm

nagendrathecoder

Comments

Kurac1 9-Feb-15 6:04am

i dont get the value in debug it gets "" (empty)

CHill60 9-Feb-15 6:29am

When I run this one, it also works fine - post the code you used for this too