string - Pad a number with starting zero in .Net

Question

I have a requirement to pad all single digits numbers with a starting zero. Can some one please suggest the best method? (ex 1 -> 01, 2 -> 02, etc)

question from:https://stackoverflow.com/questions/489466/pad-a-number-with-starting-zero-in-net

Answer 1

I'd call .ToString on the numbers, providing a format string which requires two digits, as below:

int number = 1;
string paddedNumber = number.ToString("00");

If it's part of a larger string, you can use the format string within a placeholder:

string result = string.Format("{0:00} minutes remaining", number);