How to use Regex.Replace to Replace Two Strings at Once?

Question

I have the following method that is replacing a \"pound\" sign from the file name but I want also to be able to replace the \"single apostrophe \' \" at the same time. How c

Answer 1

And just for fun, you can accomplish the same thing with LINQ:

var result = from c in fileName
             select (c == '\'' || c == '#') ? '_' : c;
return new string(result.ToArray());

Or, compressed to a sexy one-liner:

return new string(fileName.Select(c => c == '\'' || c == '#' ? '_' : c).ToArray())

Answer 2

Try

return Regex.Replace(filename, "[#']", "_");

Mind you, I'm not sure that a regex is likely to be faster than the somewhat simpler:

return filename.Replace('#', '_')
               .Replace('\'', '_');