Extract number at end of string in C#

Question

Probably over analysing this a little bit but how would stackoverflow suggest is the best way to return an integer that is contained at the end of a string.

Thus far

Answer 1

Is it always in the format LettersNumbers?

In that case, this would work:

Regex _cellAddressRegex = new Regex(@"(?[a-z]+)(?[0-9]+)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
var rowm = Convert.ToInt32(parts.Groups["Row"]);