The name 'DefaultAuthenticationTypes' does not exist in the current context
applicationmanager, asp.net, asp.net-mvc, asp.net-mvc-5, c#
Solution
`DefaultAuthenticationTypes` is part of Identity framework and found in `Microsoft.AspNet.Identity` namespace.
To use it, add a `using` to the top of the file
using Microsoft.AspNet.Identity;
//...other code
identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie);
or call it directly
identity = new ClaimsIdentity(Microsoft.AspNet.Identity.DefaultAuthenticationTypes.ApplicationCookie);
The second issue was already dealt with in another one of your questions here
Problem
I'm trying to implement role-based authorization in my web application like following: ``` [HttpPost] [ActionName("Login")] public ActionResult Login(LoginViewModel model) { if (ModelState.IsValid) { string userName = model.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); } } ``` I'm getting an error on two lines: ``` 1.ClaimsIdentity identity = new ClaimsIdentity(DefaultAuthenticationTypes.ApplicationCookie); ``` And: ``` 2.AuthenticationManager.SignIn(identity); ``` The error 1: ``` the name 'DefaultAuthenticationTypes' does not exist in the current context ``` And error 2 is: ``` Authentication manager does not contains definition for SignIn ``` I was trying to find a solution how to implement this but I couldn't find anything related to the errors.