AuthenticationManager.SignIn（）がAuthenticationManagerクラスに存在しません

Question

私はAuthenticationManagerクラスSignIn（）のメソッドを使用しようとしています。 AuthenticationManagerへのパスがある

AuthenticationManager.SignIn(identity); 

しかし、それはサインインが存在しないと言う...

：

System.Net.AuthenticationManager 

ここ

は、私はそれをやっている方法です

私はここに何かを見逃していますか？

編集：

using Microsoft.AspNet.Identity; 
using Microsoft.Owin.Security; 
using System; 
using System.Linq; 
using System.Security.Claims; 
using System.Web.Mvc; 
using WebApplication2.Models; 
using WebApplication2.ViewModels; 

[HttpPost] 
     [ActionName("Login")] 
     public ActionResult Login(LoginViewModel model) 
     { 
      if (ModelState.IsValid) 
      { 
       string userName = (string)Session["UserName"]; 
       string[] userRoles = (string[])Session["UserRoles"]; 

       ClaimsIdentity identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie); 

       identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, userName)); 

       userRoles.ToList().ForEach((role) => identity.AddClaim(new Claim(ClaimTypes.Role, role))); 

       identity.AddClaim(new Claim(ClaimTypes.Name, userName)); 

       AuthenticationManager.SignIn(identity); 
       return RedirectToAction("Success"); 
      } 
      else 
      { 
       return View("Login",model); 
      } 
     } 

編集：新しいエラーがarised：コントローラの

The following errors occurred while attempting to load the app. 
- No assembly found containing an OwinStartupAttribute. 
- No assembly found containing a Startup or [AssemblyName].Startup class. 
To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config. 
To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config. 

Answer 1

簡体例IAuthenticationManager

using Microsoft.Owin.Security; 
using System.Web;  
//...other usings 

public class AccountController : Controller { 

    [HttpPost] 
    [ActionName("Login")] 
    public ActionResult Login(LoginViewModel model) 
    { 
     if (ModelState.IsValid) 
     { 
      string userName = (string)Session["UserName"]; 
      string[] userRoles = (string[])Session["UserRoles"]; 

      ClaimsIdentity identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie); 

      identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, userName)); 

      userRoles.ToList().ForEach((role) => identity.AddClaim(new Claim(ClaimTypes.Role, role))); 

      identity.AddClaim(new Claim(ClaimTypes.Name, userName)); 

      AuthenticationManager.SignIn(identity); 
      return RedirectToAction("Success"); 
     } 
     else 
     { 
      return View("Login",model); 
     } 
    } 

    private IAuthenticationManager AuthenticationManager { 
     get { 
      return HttpContext.GetOwinContext().Authentication; 
     } 
    } 

}