void OnToDoItemTapped(object sender, ItemTappedEventArgs e)
{
var item = ToDo [e.ItemIndex];
item.Completed = true;
ToDo.Remove(item);
ToDone.Add(item);
}
void OnDoneItemTapped(object sender, ItemTappedEventArgs e)
{
var item = ToDone [e.ItemIndex];
item.Completed = false;
ToDone.Remove(item);
ToDo.Add(item);
}
protected void OnDoneUnchecked(object sender, EventArgs args)
{
var item = FindAssociatedToDoItem(sender as Element, ToDone);
if (item != null)
{
item.Completed = false;
ToDone.Remove(item);
ToDo.Add(item);
}
}