How to remove from string at index

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how could i remove the index from 0 to 2
C:\\Folder1\\Folder2\\Folder3\\Folder4

I want to remove this text in my string C:\\Folder1\\Folder2\\

So index[0],[1],[1]

And only display Folder3\\Folder4

Posted 8-Feb-15 21:17pm

Kurac1

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2 solutions

Solution 1

Use Substring:

C#

string source = "C:\\Folder1\\Folder2\\Folder3\\Folder4";
string prefix = "C:\\Folder1\\Folder2\\";

string result = source.StartsWith(prefix) 
	? source.Substring(prefix.Length)
	: source;

Posted 8-Feb-15 21:29pm

Tomas Takac

Comments

Kurac1 9-Feb-15 3:31am

But i dont now how to get out "C:\\Folder1\\Folder2\\"; from my string first?

Tomas Takac 9-Feb-15 3:33am

I don't understand. This strips the prefix from the string. Could you be more specific?

Kurac1 9-Feb-15 3:35am

I only have this string, string source = "C:\\Folder1\\Folder2\\Folder3\\Folder4"; and not the prefix i need first need to get out the prefix from my source string

Tomas Takac 9-Feb-15 3:36am

And how do you know what's the prefix? What you basically want is to split the string in two. So how do you know where to split it?

Kurac1 9-Feb-15 3:38am

as i wrote in my question using index C:\\Folder1\\Folder2\\" so C:\\ will be [0] remove that string FOlder1\\ will be [1] remove that and so an so the first 3 indexes in the string

Tomas Takac 9-Feb-15 3:46am

I still don't understand. What are the indexes? You can index string like an array of chars but that's probably not what you mean here. Another thought is you split the string by '\' and then you refer to these parts. Maybe if you post some code it would be more clear.

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Kornfeld Eliyahu Peter · Accepted Answer · 2015-02-08T21:45:00

Solution 2

If the actual folder names are unknown you may do split and join to achieve this (with a bit of LINQ)...

C#

string src = "C:\\Folder1\\Folder2\\Folder3\\Folder4";
string[ ] arr = src.Split( new char[ ] { '\\' } );
arr = arr.Where( ( value, index ) => index > 2 ).ToArray( );
string rv = string.Join( "\\", arr );

Posted 8-Feb-15 21:45pm

Kornfeld Eliyahu Peter

Comments

Kurac1 9-Feb-15 3:49am

yes that was my solution thanks

Kornfeld Eliyahu Peter 9-Feb-15 3:50am

You are welcome...

Kurac1 9-Feb-15 4:05am

How could add infront my string also and in the end "\\" string rv = string.Join( "\\", arr ); this code only adds between the string but i want infront of the string also and in the the end like this \\Folder1\\Folder2\\?

Kornfeld Eliyahu Peter 9-Feb-15 4:07am

Try this:
string.Format("\\{0}\\", string.Join( "\\", arr ));

Kurac1 9-Feb-15 4:17am

ALright but it will add \\\\ in the end then? but i only want at index[0] \\ and not in the end at all \\?