public override void OnBackPressed()
{
Person p = new Person()
{
Id = int.Parse(FindViewById <TextView>(Resource.Id.editPersonId).Text),
Fn = FindViewById <EditText>(Resource.Id.editPersonFn).Text,
Ln = FindViewById <EditText>(Resource.Id.editPersonLn).Text,
Age = int.Parse(FindViewById <EditText>(Resource.Id.editPersonAge).Text)
};
db.Update(p);
base.OnBackPressed();
}
public void Update(T item) => Handler.Update(item);