Reflection utility mock up

reflection.cs

// Define a class
[FormValidator(typeof(AccountValidator))]
[FormHandler(typeof(AccountHandler))]
[FormSection(0, "Basic Information")]
[FormSection(1, "Connection Settings")]
public class Account
{
    [FormEntry(Section = 0, Step = 0)]
    public string Email { get; set; }
    [FormEntry(Section = 0, Step = 1)]
    public string Password { get; set; }

    [FormEntry(Section = 1, Step = 0)]
    public string UserName { get; set; }
    [FormEntry(Section = 1, Step = 1)]
    public string HostName { get; set; }
    [FormEntry(Section = 1, Step = 2)]
    public int Port { get; set; }
    [FormEntry(Section = 1, Step = 3)]
    public bool UseSSL { get; set; }
    [FormEntry(Section = 1, Step = 4)]
    public AuthMethod AuthMethod { get; set; }
    [FormEntry(Section = 1, Step = 5)]
    public bool IsPrimary { get; set; }
}

// Make an instance
var account = new Acccount();

// Call injection extension
account.Inject<FormEntry>(
    (target) => 
    {
       // target.Attribute
       Cs.Write("Input {0}:", target.Name);
       var line = Cs.ReadLine();
       return Convert(line);
    });
    
// Event
account
    .BeforeSet<AccountValidator>(
        (target, validator) => 
        {
            // TODO: validate target
        })
    .AfterSet<AccountHandler>(
        (target, handler) =>
        {
            // TODO: update handler
        })
    .Inject<FormEntry>(
        (target) =>
        {
            // TODO: same as before
        });

TypeMap.cs

var account = new Account();
var validator = new AccountValidator();


account.Map<validator>(
    )