Design and Develop a website using ASP.NET MVC 4, EF, Knockoutjs and Bootstrap : Part - 2

using Application.Common;
using Application.Core.ProfileModule.ProfileAddressAggregate;
using Application.Core.Resources;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;

namespace Application.Core.ProfileModule.AddressAggregate
{
    public class Address : Entity, IValidatableObject
    {

        #region Constructor

        public Address()
        {
            this.ProfileAddresses = new HashSet<ProfileAddress>();
        }

        #endregion Constructor

        #region Property
        [Key]
        public int AddressId { get; set; }
        public string AddressLine1 { get; set; }
        public string AddressLine2 { get; set; }
        public string Country { get; set; }
        public string State { get; set; }
        public string City { get; set; }
        public string ZipCode { get; set; }
        public System.DateTime Created { get; set; }
        public string CreatedBy { get; set; }
        public System.DateTime Updated { get; set; }
        public string UpdatedBy { get; set; }

        public virtual ICollection<ProfileAddress> ProfileAddresses { get; set; }
        #endregion Property

        #region Public Methods

        #endregion Public Methods

        #region IValidatableObject Members

        /// <summary>
        /// This will validate entity for all  the conditions
        /// </summary>
        /// <param name="validationContext"></param>
        /// <returns></returns>
        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        {
            var validationResults = new List<ValidationResult>();

            //-->Check AddressLine1 property
            if (String.IsNullOrWhiteSpace(this.AddressLine1))
            {
                validationResults.Add(new ValidationResult(Messages.validation_AddressAddressLine1CannotBeNull,
                                                           new string[] { "AddressLine1" }));
            }

            //-->Check AddressLine2 property
            if (String.IsNullOrWhiteSpace(this.AddressLine2))
            {
                validationResults.Add(new ValidationResult(Messages.validation_AddressAddressLine2CannotBeBull,
                                                           new string[] { "AddressLine2" }));
            }

            //-->Check City identifier
            if (String.IsNullOrWhiteSpace(this.City))
                validationResults.Add(new ValidationResult(Messages.validation_AddresscityCannotBeEmpty,
                                                          new string[] { "City" }));
            //-->Check Country identifier
            if (String.IsNullOrWhiteSpace(this.Country))
                validationResults.Add(new ValidationResult(Messages.validation_AddressCountryCannotBeEmpty,
                                                          new string[] { "Country" }));
            //-->Check State identifier
            if (String.IsNullOrWhiteSpace(this.State))
                validationResults.Add(new ValidationResult(Messages.validation_AddressStateCannotBeEmpty,
                                                          new string[] { "State" }));

            //-->Check ZipCode property
            if (String.IsNullOrWhiteSpace(this.ZipCode))
            {
                validationResults.Add(new ValidationResult(Messages.validation_ZipCodeCannotBeBull,
                                                           new string[] { "ZipCode" }));
            }

            return validationResults;
        }

        #endregion

    }
}