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- using System.Text.RegularExpressions;
- public static class Validator
- {
- static Regex ValidEmailRegex = CreateValidEmailRegex();
- /// <summary>
- /// Taken from http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx
- /// </summary>
- /// <returns></returns>
- private static Regex CreateValidEmailRegex()
- {
- string validEmailPattern = @"^(?!\.)(""([^""\r\\]|\\[""\r\\])*""|"
- + @"([-a-z0-9!#$%&'*+/=?^_`{|}~]|(?<!\.)\.)*)(?<!\.)"
- + @"@[a-z0-9][\w\.-]*[a-z0-9]\.[a-z][a-z\.]*[a-z]$";
- return new Regex(validEmailPattern, RegexOptions.IgnoreCase);
- }
- internal static bool EmailIsValid(string emailAddress)
- {
- return (!string.IsNullOrEmpty(emailAddress)) && ValidEmailRegex.IsMatch(emailAddress)
- }
- }
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