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Answer 1

+8 A:

In order to split by a string you'll have to use the string array overload.

string data = "THExxQUICKxxBROWNxxFOX";

return data.Split(new string[] { "xx" }, StringSplitOptions.None);

Adam Robinson 2010-02-11 15:26:22

I actually ended up changing my answer to this for 2 reasons:#1: To handle the splits I want to do I would need to use Regex.Escape, because my split string will often contain asterisks, etc.#2: While this program I'm writing needs no real optimization, there does appear to be additional overhead involved with using the Regex Split method.

Brandon 2010-02-11 15:42:36

In my defense, Jon Skeet suggested somewhere to use Regex when splitting strings with strings as a seperator, and I have to admit when he suggest sth. I tend to believe it seldom is bad advice. ('Although chances are you want splitby string rather than character, in which case you'll want to look atRegex.Split')

Peter 2010-02-11 16:25:04

@Peter: I'm not sure I understand the message of your comment.

Adam Robinson 2010-02-11 16:28:12

Okay, I edited it

Peter 2010-02-11 16:29:06

@Peter: In that post Jon is suggesting it because the poster does not have a fixed delimiter; he is looking to split strings separated by "more than one space" (meaning 2+). For strings delimited by a *pattern* rather than a *value*, RegEx is a great (well, the *only*) option. For fixed-value delimiters, it introduces needless overhead. Try running a test; as the number of operations increases, RegEx ends up taking somewhere around ~10x as long as a corresponding `string.Split`.

Adam Robinson 2010-02-11 16:31:57

Ok, I see, tx for the info. I must admit I never needed a string.split in a performance sensitive environment.

Peter 2010-02-11 16:34:48

Answer 2

+1 A:

Regex.Split(string,"xx")

is the way I do it usually. Of cours you'll need a

using System.Text.RegularExpressions;

but than again : I need that lib all the time.

Peter 2010-02-11 15:26:24

Other answers worked, but I felt that this was easiest.

Brandon 2010-02-11 15:29:44

@Brandon: While I'm usually cautioning against premature optimization, you should be aware that a `RegEx.Split` is quite a bit more costly than a simple `String.Split` because of the regular expression overhead.

Adam Robinson 2010-02-11 15:33:16

If you want to split by an arbitrary string, use `Regex.Escape` on the string first, this will escape any regex meta-characters.

Richard 2010-02-11 15:38:32

Answer 3

+3 A:

There is an overload of Split that takes strings.

"THExxQUICKxxBROWNxxFOX".Split(new string[] { "xx" }, StringSplitOptions.None);

You can use either of these StringSplitOptions

None - The return value includes array elements that contain an empty string
RemoveEmptyEntries - The return value does not include array elements that contain an empty string

So if the string is "THExxQUICKxxxxBROWNxxFOX", StringSplitOptions.None will return an empty entry in the array for the "xxxx" part while StringSplitOptions.RemoveEmptyEntries will not.

Greg 2010-02-11 15:26:59

Answer 4

+1 A:

There's an overload of String.Split for this:

"THExxQUICKxxBROWNxxFOX".Split(new [] {"xx"}, StringSplitOptions.None);

bruno conde 2010-02-11 15:27:47

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C# Split A String By Another String

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