/// <summary> Add specified user in a role </summary> public override void AddUserToRole(string userName, string roleName) { // TUser user = UserManager.FindByName(userName); TUser user = UserStore.FindUserByName(userName); if (user == null) { throw new ArgumentNullException(string.Format("Unknown user {0}", userName)); } // UserManager.AddToRole(user.UserId, roleName); UserStore.AddUserToRole(user, roleName); }