protected async override void ActivateSelected()
        {
            string action = SelectedSeason.Status == EntityStatus.Active
                                ? "deactivate"
                                : "activate";
            if (MessageBox.Show("Are you sure you want to " + action + " this season?",
                                "Agrimanagr: Manage season", MessageBoxButton.YesNo) ==
                MessageBoxResult.No) return;

            using (var c = NestedContainer)
            {
                ResponseBool response = new ResponseBool() { Success = false };
                if (SelectedSeason == null) return;
                _proxy = Using<IDistributorServiceProxy>(c);
                response = await _proxy.SeasonActivateOrDeactivateAsync(SelectedSeason.Id);

                MessageBox.Show(response.ErrorInfo, "Agrimangr: Manage Season", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
        }