Return the whole line that contains a match using regular expressions in c#

Question

Suppose I have the following string:

string input = \"Hello world\\n\" + 
               \"Hello foobar world\\n\" +
               \"Hello foo world\\n\";


        

Answer 1

Yes, this is possible. You can use the following:

Regex.Matches(input, @".*(YourSuppliedRegexHere).*");

This works because the . character matches anything but the newline (\n) chracter.

Answer 2

Surround your regex phrase with .* and .* so that it pick up the entire line.

string pattern = ".*foobar.*";
Regex r = new Regex(pattern)
foreach (Match m in r.Matches(input))
{
     Console.WriteLine(m.Value);
}