Writing into a text file line by line

I am writing a text into a file. I am getting a column from database and stored it in a string and writing it in a text file. That column contains c# code and it is writing like a single line with small squares for next line(space). I need to write it line by line. Here is my code.

using (var dest = File.AppendText(Pa开发者_StackOverflow中文版th.Combine(_logFolderPath, "a.txt")))
{
    dest.WriteLine(line.TrimStart());
}  

Any suggestion?

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Does Notepad show small squares for new lines, but when you look at the file in Visual Studio it's OK? If so, my guess is that this will fix it:

dest.WriteLine(line.TrimStart().Replace("\n", Environment.NewLine));

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try this

File.AppendAllText(Path.Combine(_logFolderPath, "a.txt", 
    line.Trim() + Environment.NewLine));

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dest.WriteLine(line.TrimStart().Replace("\n", Environment.NewLine).Replace("\r", Environment.NewLine));