Provides attribute classes that are used to define metadata.
Example
Validate property class with range numbers
using System;
using System.ComponentModel.DataAnnotations;
using System.Windows.Forms;
namespace WindowsFormsApplication8
{
public class Person
{
private int id;
[Display(Name = "Person Id")]
[Range(0, 1000)]
public int Id
{
get { return id; }
set
{
Validator.ValidateProperty(value,
new ValidationContext(this, null, null) { MemberName = "Id" });
id = value;
}
}
}
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
Person p = new Person();
p.Id = 1;
p.Id = 1001;
}
}
}
