/// <summary>
/// Validate first name and last name
/// </summary>
/// <returns></returns>
public override bool Validate()
{
IValidator<Person> val = new Validator<Person>(this);
val.Property(p => p.FirstName).NotNullOrEmpty("First name can not be empty")
.Property(p => p.LastName).NotNullOrEmpty("Last name can not be empty");
this.Messages = val.Messages;
return val.IsValid;
}