email-validation

override jquery validate plugin email address validation

I wouldn’t do this but for the sake of an answer you need to add your own custom validation. //custom validation rule $.validator.addMethod(“customemail”, function(value, element) { return /^\w+([-+.’]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/.test(value); }, “Sorry, I’ve enabled very strict email validation” ); Then to your rules add: rules: { email: { required: { depends:function(){ $(this).val($.trim($(this).val())); return true; } }, customemail: … Read more

How to check edittext’s text is email address or not?

On Android 2.2+ use this: boolean isEmailValid(CharSequence email) { return android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches(); } for example: EditText emailid = (EditText) loginView.findViewById(R.id.login_email); String getEmailId = emailid.getText().toString(); // Check if email id is valid or not if (!isEmailValid(getEmailId)){ new CustomToast().Show_Toast(getActivity(), loginView, “Your Email Id is Invalid.”); }

Best Regular Expression for Email Validation in C#

Email address: RFC 2822 Format Matches a normal email address. Does not check the top-level domain. Requires the “case insensitive” option to be ON. [a-z0-9!#$%&’*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&’*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])? Usage : bool isEmail = Regex.IsMatch(emailString, @”\A(?:[a-z0-9!#$%&’*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&’*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?)\Z”, RegexOptions.IgnoreCase);

Email address validation using ASP.NET MVC data type attributes

If you are using .NET Framework 4.5, the solution is to use EmailAddressAttribute which resides inside System.ComponentModel.DataAnnotations. Your code should look similar to this: [Display(Name = “Email address”)] [Required(ErrorMessage = “The email address is required”)] [EmailAddress(ErrorMessage = “Invalid Email Address”)] public string Email { get; set; }

What are best practices for validating email addresses on iOS 2.0

The answer to Using a regular expression to validate an email address explains in great detail that the grammar specified in RFC 5322 is too complicated for primitive regular expressions. I recommend a real parser approach like MKEmailAddress. As quick regular expressions solution see this modification of DHValidation: – (BOOL) validateEmail: (NSString *) candidate { … Read more

Regular expression which matches a pattern, or is an empty string

To match pattern or an empty string, use ^$|pattern Explanation ^ and $ are the beginning and end of the string anchors respectively. | is used to denote alternates, e.g. this|that. References regular-expressions.info/Anchors and Alternation On \b \b in most flavor is a “word boundary” anchor. It is a zero-width match, i.e. an empty string, … Read more

Why does HTML5 form-validation allow emails without a dot?

You can theoretically have an address without a “.” in. Since technically things such as: user@com user@localserver user@[IPv6:2001:db8::1] Are all valid emails. So the standard HTML5 validation allows for all valid E-mails, including the uncommon ones. For some easy to read explanations (Instead of reading through the standards): http://en.wikipedia.org/wiki/Email_address#Examples