public ActionResult GetRoles(string UserName) { if (!string.IsNullOrEmpty(UserName)) { ApplicationUser user = db.Users.FirstOrDefault(n => n.UserName.Equals(UserName)); this.Usermanager = new UserManager <ApplicationUser>(new UserStore <ApplicationUser>(this.db)); ViewBag.RolesForThisUser = Usermanager.GetRoles(user.Id); var userList = db.Users.OrderBy(n => n.UserName).ToList().Select(e => new SelectListItem() { Text = e.UserName, Value = e.UserName }); ViewBag.Users = userList; } return(View()); }