With StreamWriter doesn't work \n (C#)

Question

I have a problem with the C# Stream Writer. I use the following Code:

//Constructor
public EditorTXTFile
{
   FileStream f = File.Create(System.IO.Directory.GetCurrentDirectory() + "\\Output.txt");
   f.Close();
}

//Function AddText
public void AddLogFileText(string text)
{         
   string text = "l1\n\rl2\n\rl3\n\nl5";

   StreamWriter writer = new StreamWriter(System.IO.Directory.GetCurrentDirectory() + "\\Output.txt", true);
   writer.Write(text);         

   writer.Close();
}

When I open Output.txt it shows for \n or \r a █(which means not showable symbol) and the whole string is in one line... Later should the text hand over the function, so I can't write the text with .WriteLine because I don't know if the actual string is on the same line or in a new line.

What make I wrong?

Thanks for any help.

The answer here has some helpful information as well: http://stackoverflow.com/questions/1885900/order-of-carriage-return-and-new-line-feed — DJ Quimby, Nov 12 '12 at 16:10
But it should also go when I just wirte a \n (By l5). Or not? — Waronius, Nov 12 '12 at 16:11
Doesn't make any difference to your question, but you should wrap your StreamWriter calls in a `using` statement. — Arran, Nov 12 '12 at 16:18

score 37 · Accepted Answer · edited Nov 12 '12 at 16:11

37

Use Environment.NewLine as line separator or "\r\n" if you want to do it by hand.

edited Nov 12 '12 at 16:11

Omar

16,329
10
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answered Nov 12 '12 at 16:09

Alexei Levenkov

98,904
14
127
179

2

The beauty of `Environment.NewLine` is that you don't have to worry about the correct combo of `\r\n` for the particular environment in which your code is running. – Michael Sallmen Nov 12 '12 at 16:11

score 2 · Answer 2 · answered Nov 12 '12 at 16:09

2

Line Separator(newLine) is \r\n not \n\r,

change your text as :

       string text = "l1\r\nl2\r\nl3\r\nl5";

answered Nov 12 '12 at 16:09

Yogendra Singh

33,927
6
63
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score 0 · Answer 3 · answered Nov 12 '12 at 16:09

0

Try string text = @"l1\n\rl2\n\rl3\n\nl5";. To prevent character stuffing.

answered Nov 12 '12 at 16:09

Michael Sallmen

728
5
13

score 0 · Answer 4 · edited May 26 '13 at 15:54

0

This is binary format:

writer.Write(text);

This is line sequential format:

writer.WriteLine(text);

You have to use WriteLine format...

edited May 26 '13 at 15:54

pb2q

58,613
19
146
147

answered May 26 '13 at 15:38

Jorge Lola

1

score 0 · Answer 5 · answered Jan 17 '14 at 10:44

0

You can use Environment.NewLine like this:

streamWriter.Write(String.Concat(Enumerable.Repeat(Environment.NewLine, n).ToArray()));

answered Jan 17 '14 at 10:44

Andrei Marincas

446
5
13

the variable n is unknown – CodingYourLife Jan 15 '21 at 14:11

score 0 · Answer 6 · answered Feb 06 '15 at 09:24

0

i tried to write a class and seprate "\n"s but i found rich text box!!

yeah! it works:

        RichTextBox rch = new RichTextBox();
        rch.Text = cmn;
        foreach (string l in rch.Lines)
            strw.WriteLine(l);

answered Feb 06 '15 at 09:24

Aref Khandan

189
5

you can use rch.NewLine="\n\r"; to change new line environ – Aref Khandan Feb 06 '15 at 09:25

With StreamWriter doesn't work \n (C#)

6 Answers6