New Project--
First add the "resource file". Change the resource file access modifier to public.
Go to Solution Explorer and right click on Models=>Add=>Class.（Registration）
 public class Registration {    
        [Display(Name = "FirstName", ResourceType = typeof(Resource))]    
        [Required(ErrorMessageResourceType = typeof(Resource), ErrorMessageResourceName = "FirstNameRequired")]    
        public string FirstName {    
            get;    
            set;    
        }    
        [Display(Name = "LastName", ResourceType = typeof(Resource))]    
        [Required(ErrorMessageResourceType = typeof(Resource), ErrorMessageResourceName = "LastNameRequired")]    
        public string LastName {    
            get;    
            set;    
        }    
        [Display(Name = "Email", ResourceType = typeof(Resource))]    
        [Required(ErrorMessageResourceType = typeof(Resource), ErrorMessageResourceName = "EmailRequired")]    
        [RegularExpression(@ "^([0-9a-zA-Z]([\+\-_\.][0-9a-zA-Z]+)*)+@(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]*\.)+[a-zA-Z0-9]{2,3})$", ErrorMessageResourceType = typeof(Resource), ErrorMessageResourceName = "EmailInvalid")]    
        public string Email {    
            get;    
            set;    
        }    
        [Display(Name = "Country", ResourceType = typeof(Resource))]    
        [Required(ErrorMessageResourceType = typeof(Resource), ErrorMessageResourceName = "CountryNameRequired")]    
        public string Country {    
            get;    
            set;    
        }    
    }    


Go to Solution Explorer= > Right click on Project name= > Add= > Class => Enter Class name= > Add.（LanguageMang）
public class LanguageMang
    {
        public static List<Languages> AvailableLanguages = new List<Languages> {
            new Languages {
                LanguageFullName = "English", LanguageCultureName = "en"
            },
            new Languages {
                LanguageFullName = "French", LanguageCultureName = "fr-FR"
            },
        };
        public static bool IsLanguageAvailable(string lang)
        {
            return AvailableLanguages.Where(a => a.LanguageCultureName.Equals(lang)).FirstOrDefault() != null ? true : false;
        }
        public static string GetDefaultLanguage()
        {
            return AvailableLanguages[0].LanguageCultureName;
        }
        public void SetLanguage(string lang)
        {
            try
            {
                if (!IsLanguageAvailable(lang)) lang = GetDefaultLanguage();
                var cultureInfo = new CultureInfo(lang);
                Thread.CurrentThread.CurrentUICulture = cultureInfo;
                Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(cultureInfo.Name);
                HttpCookie langCookie = new HttpCookie("culture", lang);
                langCookie.Expires = DateTime.Now.AddYears(1);
                HttpContext.Current.Response.Cookies.Add(langCookie);
            }
            catch (Exception) { }
        }
    }
    public class Languages
    {
        public string LanguageFullName{get;set;}
        public string LanguageCultureName{get;set;}
    }


Go to Solution Explorer= > Right click on Project name= > Add= > Class => Enter class name= > Add. Here, our Class name is “MyController”.
 public class MyController: Controller     
    {    
        protected override IAsyncResult BeginExecuteCore(AsyncCallback callback, object state) {    
            string lang = null;    
            HttpCookie langCookie = Request.Cookies["culture"];    
            if (langCookie != null) {    
                lang = langCookie.Value;    
            } else {    
                var userLanguage = Request.UserLanguages;    
                var userLang = userLanguage != null ? userLanguage[0] : "";    
                if (userLang != "") {    
                    lang = userLang;    
                } else {    
                    lang = LanguageMang.GetDefaultLanguage();    
                }    
            }    
            new LanguageMang().SetLanguage(lang);    
            return base.BeginExecuteCore(callback, state);    
        }    
    }    


HomeController
public ActionResult Index()
        {
            return View();
        }
        [HttpPost]
        public ActionResult Index(Registration r)
        {
            return View(r);
        }
        public ActionResult ChangeLanguage(string lang)
        {
            new LanguageMang().SetLanguage(lang);
            return RedirectToAction("Index", "Home");
        }


Index.cshtml

@model MultiLanMVC.Models.Registration
@{
    ViewBag.Title = MultiLanMVC.Resource.Register;
} 
<h2> @MultiLanMVC.Resource.Register </h2>
@using (Html.BeginForm())
{
    @Html.AntiForgeryToken() 
    <div class = "form-horizontal"> 
        <h4> Registration </h4>   
        <hr/>   
    @Html.ValidationSummary(true, "", new{@class = "text-danger"}) 
    <div class = "form-group"> 
    @Html.LabelFor(model => model.FirstName, htmlAttributes: new{@class = "control-label col-md-2"}) 
        <div class = "col-md-10"> 
        @Html.EditorFor(model => model.FirstName, new {htmlAttributes = new{@class = "form-control"}})
            @Html.ValidationMessageFor(model => model.FirstName, "", new
       {
           @class = "text-danger"
       }) 
        </div>   
        </div>   
        <div class = "form-group" > 
            @Html.LabelFor(model => model.LastName, htmlAttributes: new{@class = "control-label col-md-2"}) 
            <div class = "col-md-10" > 
                @Html.EditorFor(model => model.LastName, new{htmlAttributes = new{@class = "form-control"}})
                @Html.ValidationMessageFor(model => model.LastName, "", new{@class = "text-danger"}) </div> </div>   
        <div class = "form-group" > 
            @Html.LabelFor(model => model.Email, htmlAttributes: new{@class = "control-label col-md-2"}) 
            <div class = "col-md-10"> 
                @Html.EditorFor(model => model.Email, new{htmlAttributes = new{@class = "form-control"}})
                @Html.ValidationMessageFor(model => model.Email, "", new{@class = "text-danger"}) </div>   </div>   
        <div class = "form-group" > 
            @Html.LabelFor(model => model.Country, htmlAttributes: new{@class = "control-label col-md-2"}) 
            <div class = "col-md-10" > 
                @Html.EditorFor(model => model.Country, new{htmlAttributes = new{@class = "form-control"}})
                @Html.ValidationMessageFor(model => model.Country, "", new{@class = "text-danger"}) </div>   </div>   
        <div class = "form-group" > 
            <div class = "col-md-offset-2 col-md-10" > 
                <input type = "submit" value = "@MultiLanMVC.Resource.Register"class = "btn btn-default" /> </div>   </div>   </div>
    } 
    <div> 
        @Html.ActionLink("Back to List", "Index") 
    </div>   
    <script src = "~/Scripts/jquery-1.10.2.min.js" > </script>   
    <script src = "~/Scripts/jquery.validate.min.js" > </script>   
    <script src = "~/Scripts/jquery.validate.unobtrusive.min.js" > </script>

**********************************************
_Layout .cshtml
<div style="padding:5px">  
  
@{  
foreach (var i in MultiLanMVC.LanguageMang.AvailableLanguages)  
{  
@Html.ActionLink(i.LanguageFullName, "ChangeLanguage", "Home", new { lang = i.LanguageCultureName }, null) <text> </text>  
}  
}  
</div>