In C#, how to check whether a string contains an integer?

Question

I just want to know, whether a String variable contains a parsable positive integer value. I do NOT want to parse the value right now.

Currently I

Answer 1

The answer seems to be just no.

Although there are many good other answers, they either just hide the uglyness (which I did not ask for) or introduce new problems (edge cases).

Answer 2

Maybe this can help

string input = "hello123world";
bool isDigitPresent = input.Any(c => char.IsDigit(c));

answer from msdn.