Top "Validation" questions

Validation is used to check data to make sure it fits whatever required specifications are set for it.

What is ModelState.IsValid valid for in ASP.NET MVC in NerdDinner?

On the NerdDinner example of Professional ASP.NET MVC 1.0 there's a method to create a new dinner as copied bellow (…

asp.net-mvc validation nerddinner
Check whether an input string contains a number in javascript

My end goal is to validate an input field. The input may be either alphabetic or numeric.

javascript string numbers validation
Validation of radio button group using jQuery validation plugin

How to perform validation for a radio button group (one radio button should be selected) using jQuery validation plugin?

jquery validation
XML Schema (XSD) validation tool?

At the office we are currently writing an application that will generate XML files against a schema that we were …

xml validation xsd schema
How do I turn off the mysql password validation?

It seems that I may have inadvertently loaded the password validation plugin in MySQL 5.7. This plugin seems to force all …

mysql validation global-variables mysql-5.7 change-password
Best way to alphanumeric check in JavaScript

What is the best way to perform an alphanumeric check on an INPUT field in JSP? I have attached my …

javascript validation
How to force a html5 form validation without submitting it via jQuery

I have this form in my app and I will submit it via AJAX, but I want to use HTML5 …

jquery html validation
How can I listen to the form submit event in javascript?

I wanna write my own form validation javascript library and I've been looking on google how to detect if a …

javascript forms validation
Email address validation using ASP.NET MVC data type attributes

I have some problems with the validation of a Email. In my Model: [Required(ErrorMessage = "Field can't be empty")] [DataType(…

c# asp.net-mvc validation email-validation
How can I manually set an Angular form field as invalid?

I am working on a login form and if the user enters invalid credentials we want to mark both the …

validation angular angular2-forms