public async Task <bool> Remove(ObservableCollection <AppViewModel> appVMs, int selectedIndex)
{
// Get id
long id = appVMs[selectedIndex].Id;
// Update ViewModel
var taskRemove = Task.Run(() => appVMs.RemoveAt(selectedIndex));
// Insert to database and update id
var taskInsert = Task.Run(() => appRepository.DeleteAppById(id));
// Return status
await Task.WhenAll(taskRemove, taskInsert);
return(taskInsert.Result);
}
