How to write a text file in C#

Question

I need to write a strings into a text file from C#, each string on a new line...How can I do this?

Possible duplicate of [Append lines to a file using a StreamWriter](http://stackoverflow.com/questions/7306214/append-lines-to-a-file-using-a-streamwriter) — OmG, Jan 19 '17 at 12:35

score 13 · Answer 1 · answered Dec 17 '09 at 05:01

13

string[] mystrings = new string[] { "Foo", "Bar", "Baz", "Qux" };

System.IO.File.WriteAllLines("myfile.txt", mystrings);

answered Dec 17 '09 at 05:01

dtb

2

+1; can't beat a one-liner! Exception handling not included. Available in .NET 2.0+. http://msdn.microsoft.com/en-us/library/system.io.file.writealllines.aspx – p.campbell Dec 17 '09 at 05:03

score 4 · Answer 2 · answered Dec 17 '09 at 05:53

4

If you wish to append the text lines to the file, use AppendAllText:

string appendText = "This is extra text" + Environment.NewLine;
File.AppendAllText(path, appendText);

answered Dec 17 '09 at 05:53

SwDevMan81

score 1 · Answer 3 · answered Apr 13 '14 at 15:44

1

How about StreamWriter class? Read more here...

And do not forget about exception handling e.g missing file permissions etc.

answered Apr 13 '14 at 15:44

Over Killer

score 0 · Answer 4 · answered Dec 17 '09 at 05:01

0

Use the StreamWriter class; take a look at this tutorial. A new line is simply the character \n (Unix) or the characters \r\n (Windows).

answered Dec 17 '09 at 05:01

ty.

4 Answers4