using System.Text.RegularExpressions; private bool validSSN(string ssn) { const string ssnPattern = @"^(?!000)([0-6]d{2}|7([0-6]d|7[012]))([ -])?(?!00)dd([ -|])?(?!0000)d{4}$"; Regex regexSsn = new Regex(ssnPattern); if (regexSsn.IsMatch(ssn)) { return true; } else { return false; } }
Last Updated on October 26, 2015