Asp MVC: How get roles from ApplicationUser

问题

In ASP.NET MVC 5, in a controller, I have take the user that has make the request with:

ApplicationUser user = System.Web.HttpContext.Current.GetOwinContext().GetUserManager<ApplicationUserManager>().FindById(System.Web.HttpContext.Current.User.Identity.GetUserId());

With the ApplicationUser instance, how can i get all the Roles of the user?

回答1:

You can get user and assigned roles by using UserManager.

var userManager = HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();

and then you can get your user like you already did, and also you can get roles for particular user by calling GetRoles method

userManager.GetRoles(userId);

回答2:

        List<string> roles = new UserManager().GetRoles(userIdString)).ToList();

below needed classes were created automatically in ASP.NET 4.5 project using VS 2015 using . the file name is IdentityModels.cs.

default 4 Nuget packages are installed including Microsoft.AspNet.WebApi v5.2.3

 public class UserManager : UserManager<ApplicationUser>
    {
        public UserManager()
            : base(new UserStore<ApplicationUser>(new ApplicationDbContext()))
        {
        }
    }

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext()
            : base("DefaultConnection")
        {
        }
    }


public class ApplicationUser : IdentityUser
{
}

来源：https://stackoverflow.com/questions/34975075/asp-mvc-how-get-roles-from-applicationuser