StreamWriter add an extra \r in the end of the line

Question

I created a class with the responsibility to generate a text file where each line represents the information of an object of \'MyDataClass\' class. Below is a simplification

Answer 1

My guess is that the extra \r is added during FTP (maybe try a binary transfer)

Like here

I've tested the code and the extra /r is not due to the code in the current question

Answer 2

I had a similar issue. Environment.NewLine and WriteLine gave me extra \r character. But this below worked for me:

StringBuilder sbFileContent = new StringBuilder();
sbFileContent.Append(line);
sbFileContent.Append("\n");
streamWriter.Write(sbFileContent.ToString());

Answer 3

According to MSDN, WriteLine

Writes data followed by a line terminator to the text string or stream.

your last line should be

 _streamWriter.Write(line);

Put it outside of your loop and change your loop so it doesn't manage the last line.

Answer 4

I just now had a similar problem where the code below would randomly insert blank lines in the output file (outFile)

using (StreamWriter outFile = new StreamWriter(outFilePath, true)) {
     foreach (string line in File.ReadLines(logPath)) {
            string concatLine = parse(line, out bool shouldWrite);
            if (shouldWrite) {
              outFile.WriteLine(concatLine);       
            }     
      }   
}

Using Antar's idea I changed my parse function so that it returned a line with Environment.NewLine appended, ie

return myStringBuilder.Append(Environment.NewLine).ToString();

and then in the foreach loop above, changed the

outFile.WriteLine(concatLine);

to

outFile.Write(concatLine);

and now it writes the file without a bunch of random new lines inserted. However, I still have absolutely no idea why I should have to do this.