pattern email validation
<input type="email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$" />pattern email validation
<input type="email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$" />validate email address
public bool IsValid(string emailaddress)
{
private const string EmailRegEx = @"^[\w!#$%&'*+\-/=?\^_`{|}~]+(\.[\w!#$%&'*+\-/=?\^_`{|}~]+)*"
+ "@"
+ @"((([\w]+([-\w]*[\w]+)*\.)+[a-zA-Z]+)|"
+ @"((([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-5]).){3}[01]?[0-9]{1,2}|2[0-4][0-9]|25[0-5]))\z";
return new Regex(EmailRegEx, RegexOptions.None).Match(emailaddress).Success;
}Copyright © 2021 Codeinu
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