By David Fekke
January 19th, 2011
Scott Guthrie in his latest blog post explains one of the cool new features in ASP.NET MVC 2: Model Validation. MVC already had a way of validating that worked pretty well, but with MVC 2 has improved on this with new DataAnnotation Validation attributes.
using System;
using System.ComponentModel.DataAnnotations;
namespace fekkedotcomMVC.Models
{
public class Person
{
//Example of required attributes.
[Required(ErrorMessage="First Name is required")]
public string FirstName { get; set; }
[Required(ErrorMessage = "Last Name is required")]
public string LastName { get; set; }
[Required(ErrorMessage = "Email is required")]
public string Email { get; set; }
}
}
There are also attributes for length and regular expressions. You can also add your own by extending one of the annotation classes.
Tags: ASP.NET MVC