C# - Split string by lines?

Question

Let's say, for example, I have the following string downloaded from a .txt file in the web.

line1
line2
line3

How can I split the whole string by lines, so I can use splitted[0] to get line1, splitted[1] to get line 2, etc..? Thanks!

Can I use?

string[] tokens = Regex.Split(input, @"\r?\n|\r");

Thanks

`Environment.NewLine` might also be worth a try: `string.Split(Environment.NewLine);` — Adam Houldsworth, Sep 13 '13 at 08:31

score 10 · Answer 1 · answered Sep 13 '13 at 08:32

10

Use File.ReadAllLines to get the string[] with all lines:

string[] allLines = File.ReadAllLines(path);
string line10 = allLines[9]; // exception if there are less
string line100 = allLines.ElementAtOrDefault(99); // null if there are less

If you already have a string you can use String.Split with Environment.NewLine

string[] textLines = text.Split(new[]{ Environment.NewLine }, StringSplitOptions.None);

answered Sep 13 '13 at 08:32

Tim Schmelter

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Thanks. I have another question. The string I'm getting is 0x0B, for example. When using short.Parse, it fails, it says the input wasn't in correct format. Why's that? If I use 0x0B in VS it works fine, but when I get it from, a text file.. – user2714359 Sep 13 '13 at 08:36
Additionally, if the file is large, OP can use [`File.ReadLines`](http://msdn.microsoft.com/en-us/library/dd383503.aspx) which returns an `IEnumerable`, i.e. yields lines one by one. That's useful if there is no need to keep all lines in memory at the same time. – Groo Sep 13 '13 at 08:37
@user2714359: You might want to ask another question then. You're welcome :) – Tim Schmelter Sep 13 '13 at 08:46
@user2714359: Don't forget to accept the answer which solves your problem. You haven't accepted any answers for your questions so far. – Groo Sep 13 '13 at 08:49

score 4 · Answer 2 · edited May 23 '17 at 11:48

4

Use this:

var result = Regex.Split(text, "\r\n|\r|\n");

as indicated here: Best way to split string into lines

edited May 23 '17 at 11:48

Community

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answered Sep 13 '13 at 08:32

Alex

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First example will create an additional empty string for each newline. – Groo Sep 13 '13 at 08:35
ok, i updated my answer – Alex Sep 13 '13 at 08:36

score 2 · Answer 3 · answered Sep 13 '13 at 08:32

2

If you are downloading a file, then open it and ReadAllLines

var f= File.ReadAllLines(filPath)

ReadAllLines returns string[].

answered Sep 13 '13 at 08:32

Giannis Paraskevopoulos

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C# - Split string by lines?

3 Answers3