data annotations benchmark

namespace ConsoleApplication8
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    using System.Diagnostics;

    internal class Program
    {
        private static void Main(string[] args)
        {
            IList<Model> instances = new List<Model>();

            Random random = new Random();

            for (int i = 0; i < 100 * 1000; i++)
            {
                instances.Add(new Model
                {
                    Property1 = random.Next().ToString(),
                    Property2 = random.Next().ToString(),
                    Property3 = random.Next().ToString(),
                    Property4 = random.Next().ToString(),
                    Property5 = random.Next().ToString(),
                    Property6 = random.Next().ToString(),
                    Property7 = random.Next().ToString(),
                    Property8 = random.Next().ToString(),
                    Property9 = random.Next().ToString(),
                    Property10 = random.Next().ToString(),
                    Property11 = random.Next().ToString(),
                    Property12 = random.Next().ToString(),
                    Property13 = random.Next().ToString(),
                    Property14 = random.Next().ToString(),
                    Property15 = random.Next().ToString(),
                    Property16 = random.Next().ToString(),
                    Property17 = random.Next().ToString(),
                    Property18 = random.Next().ToString(),
                    Property19 = random.Next().ToString(),
                    Property20 = random.Next().ToString()
                });
            }

            var results = new List<ValidationResult>();

            var stopwatch = Stopwatch.StartNew();

            foreach (var instance in instances)
            {
                var context = new ValidationContext(instance, null, null);
                Validator.TryValidateObject(instance, context, results);
            }

            Console.WriteLine(stopwatch.Elapsed);
        }
    }

    public class Model
    {
        [Required]
        public string Property1 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property10 { get; set; }

        [Required]
        public string Property11 { get; set; }

        [MinLength(2)]
        public string Property12 { get; set; }

        [MaxLength(11)]
        public string Property13 { get; set; }

        [Required]
        public string Property14 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property15 { get; set; }

        [MinLength(2)]
        public string Property16 { get; set; }

        [MaxLength(11)]
        public string Property17 { get; set; }

        [Required]
        public string Property18 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property19 { get; set; }

        [MinLength(2)]
        public string Property2 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property20 { get; set; }

        [MaxLength(11)]
        public string Property3 { get; set; }

        [Required]
        public string Property4 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property5 { get; set; }

        [MinLength(2)]
        public string Property6 { get; set; }

        [MaxLength(11)]
        public string Property7 { get; set; }

        [Required]
        public string Property8 { get; set; }

        [RegularExpression("[0-9]+")]
        public string Property9 { get; set; }
    }
}