public IActionResult Index() { LoadData(); AuthorizationsViewModel vm = new AuthorizationsViewModel(); { List <string> userNames = new List <string>(); foreach (var user in Users) { userNames.Add(user.FirstName + " " + user.LastName); } vm.UserNames = new Microsoft.AspNetCore.Mvc.Rendering.SelectList(userNames); } { List <string> lockName = new List <string>(); foreach (var l in Locks) { lockName.Add(l.Name); } vm.LockNames = new Microsoft.AspNetCore.Mvc.Rendering.SelectList(lockName); } vm.Authorizations = Authorizations; return(View("Index", vm)); }