/// <summary>
/// to add lemon oo the order item
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AddLemon_Click(object sender, RoutedEventArgs e)
{
if (tea)
{
if (DataContext is Order order)
{
if (CollectionViewSource.GetDefaultView(order.Items).CurrentItem is Drink drink)
{
if (drink is Tyrannotea tea)
{
tea.AddLemon();
}
else if (drink is Water water)
{
water.AddLemon();
}
}
}
tea = false;
}
}