async Task ExecuteLoadItemsCommand() { if (IsBusy) { return; } IsBusy = true; try { ItemsBooks.Clear(); var allBoks = await conection.GetAllVehicles(); //var items = await DataStore.GetItemsAsync(true); foreach (var libro in allBoks) { ItemsBooks.Add(libro); } } catch (Exception ex) { Debug.WriteLine(ex); } finally { IsBusy = false; } }