Can i use regex to find the index of X?

Question

I have a big string, and want to find the first occurrence of X, X is \"numberXnumber\"... 3X3, or 4X9...

How could i do this in C#?

Answer 1

var s = "long string.....24X10     .....1X3";
var match = Regex.Match(s, @"\d+X\d+");
if (match.Success) {
    Console.WriteLine(match.Index); // 16
    Console.WriteLine(match.Value); // 24X10;
}

Also take a look at NextMatch which is a handy function

match = match.NextMatch();
match.Value; // 1X3;