AcManager.Pages.Dialogs.InstallAdditionalContentDialog.UpdateEntries C# (CSharp) Метод

        private async void UpdateEntries() {
            Loading.Visibility = Visibility.Visible;
            MainContent.Visibility = Visibility.Collapsed;

            try {
                using (_cancellationTokenSource = new CancellationTokenSource()) {
                    Entries = (await _installator.GetEntriesAsync(null, _cancellationTokenSource.Token)).Select(x => {
                        var manager = x.Type.GetManager();
                        if (manager == null) return null;
                        var existed = manager.GetObjectById(x.Id);
                        return new EntryWrapper(x, existed == null);
                    }).Where(x => x != null).ToArray();
                }
            } catch (PasswordException e) {
                NonfatalError.Notify(AppStrings.AdditionalContent_PasswordIsInvalid, e);
                Close();
            } catch (Exception e) {
                NonfatalError.Notify(AppStrings.AdditionalContent_CannotUnpack, AppStrings.AdditionalContent_CannotUnpack_Commentary, e);
                Close();
            } finally {
                _cancellationTokenSource = null;
            }

            Loading.Visibility = Visibility.Collapsed;
            MainContent.Visibility = Visibility.Visible;
        }