c# - What could be reason of AutoMapper failed? -

i suppose reason of automapper failed different fields of domain model , view model. here domain model:

public partial class users     {         public int id { get; set; }         public string login { get; set; }         public string password { get; set; }         public int roleid { get; set; }          public virtual userroles userroles { get; set; }     } 

so here view model:

 public class usersviewmodel     {         public int id { get; set; }         [required]         [minlength(3, errormessage = "Минимальная длина логина - 3 символа")]         [maxlength(50, errormessage = "Максимальная длина логина - 50 символов")]         [display(name = "Логин")]         public string login { get; set; }         [required]         [minlength(8, errormessage = "Минимальная длина пароля - 8 символов")]         [maxlength(50, errormessage = "Максимальная длина пароля - 50 символов")]         [display(name = "Пароль")]         public string password { get; set; }         [required]         [display(name = "Роль")]         public int roleid { get; set; }         public ienumerable<selectlistitem> usrroles { get; set; }         public virtual userroles userroles { get; set; }     } 

is filed public ienumerable<selectlistitem> usrroles { get; set; } reason why automapper failed?

i call mapping way:

public async task<ienumerable<usersviewmodel>> getuserslist()         {             var t = new task<ienumerable<users>>(() => _db.users.toenumerable());             t.start();                       await t;             var vm = mapper.map<task<ienumerable<users>>, task<ienumerable<usersviewmodel>>>(t);             return vm.result.orderby(x => x.login);         } 

it's failing because trying map task's not users usersviewmodel. want:

public async task<ienumerable<usersviewmodel>> getuserslist() {   var users = await new task<ienumerable<users>>(() => _db.users.toenumerable());   var vm = mapper.map<ienumerable<users>, ienumerable<usersviewmodel>>(users);   return vm.result.orderby(x => x.login); } 

await return result of task, want, not task itself.

your other option calling t.result return ienumerable<users> list.