Regex (C#): Replace \n with \r\n

Question

How can I replace lone instances of \\n with \\r\\n (LF alone with CRLF) using a regular expression in C#?

Sorry if it\'s a stupid question, I\'m new to Regex.

Answer 1

myStr.Replace("([^\r])\n", "$1\r\n");

$ may need to be a \