Finding the string length of a integer in .NET

Question

In .NET what is the best way to find the length of an integer in characters if it was represented as a string?

e.g.

1 = 1 character
10 = 2 characters

Answer 1

If you want to do it by maths you could try this:

int integer = 100
int charCount = (int) Math.Ceiling(Math.Log10(integer+1));

I doubt if this is very much faster than converting to a string though