How to parse all digits from a C# string?

Question

Regular Expressions

How to parse all digits from a string using only a regular expression (preferably without a loop)?
I tried like this, but it doesn't work.

string line = "12sds52124d22";
string result = new Regex("\\d+").Match(line).Value;

I get 12, but I need all the numbers.

Answer 1

It would be easier to do this:

string line = "12sds52124d22";

string result = Regex.Replace(line, @"[^\d]", "");