private void AddButton_click(object sender, RoutedEventArgs e)
{
string titl = itemNameBox.Text;
int quantuty = int.Parse(quantityBox.Text);
string type = typeBox.Text;
double price = double.Parse(priceBox.Text);
Item item = new Item(new Random().Next(), Title, quantuty, price, type);
calculator.addItem(item);
double total = calculator.getTotal();
totalLebel.Content = String.Format("Rp. {0}", total);
listBox.Items.Refresh();
}
private void AddButton_Click(object sender, RoutedEventArgs e)
{
string title = ItemNameBox.Text;
int quantity = int.Parse(QuantityBox.Text);
string type = TypeBox.Text;
double price = double.Parse(PriceBox.Text);
Item item = new Item(new Random().Next(), title, quantity, price, price, type);
Calculator.addItem(item);
double total = Calculator.getTotal();
TotalLabel.Content = string.Format("Rp. {0}", total);
Listbox.Items.Refresh();
}