private void bnShowCart_Click(object sender, EventArgs e)
{
// XXX Show Cart Button event handler
if (!_attachedControl.IsLoggedIn())
{
MessageBox.Show("Customer not logged in.");
return;
}
while (true)
{
try
{ // to capture an exception from SelectedIndex/SelectedItem of carDisplay
cartDialog.ClearDisplayItems();
cartDialog.AddDisplayItems(_attachedControl.CurrentCustomer.Cart.BookList.ToArray()); // null is a dummy argument
cartDialog.AddDisplayItems(_attachedControl.CurrentCustomer.Cart.CartTotalArray());
//foreach (OrderItem oi in _attachedControl.CurrentCustomer.Cart.BookList)
//{
// if (oi == selectedObject)
// {
// targetObject = oi;
// }
//}
switch (cartDialog.Display())
{
case DialogReturn.CheckOut: // check out
// XXX
_attachedControl.CheckOutCurrentCustomer();
return;
case DialogReturn.ReturnBook: // remove a book
// XXX
object selectedObject = cartDialog.SelectedItem; // picked up a string or an OrderItem object
if (!(selectedObject is OrderItem))
{
MessageBox.Show(this, "an extra line was selected");
continue;
}
OrderItem targetObject = (OrderItem)selectedObject;
_attachedControl.ReturnBook(_attachedControl.CurrentCustomer, _attachedControl.CurrentCustomer.Cart, targetObject);
continue;
case DialogReturn.Done: // cancel
return;
}
}
catch (BookShopException bsex)
{
MessageBox.Show(this, bsex.ErrorMessage);
continue;
}
}
}
public void showCartInformation(CartDialog cart)
{
if (!isCustomerLoggedIn)
{
throw new NullReferenceException("You are not logged in.");
}
if (LoggedinCustomer.currentCart.subTransactionCount <= 0)
{
throw new NullReferenceException("There are no items in your cart.");
}
for (int i = 0; i < LoggedinCustomer.currentCart.subTransactionCount; i++)
{
cart.AddDisplayItems(LoggedinCustomer.currentCart.itemsPurchased[i].ToString());
}
cart.AddDisplayItems("=======================================================");
cart.AddDisplayItems("Total Price : $" + LoggedinCustomer.currentCart.totalPrice);
}
public void ListCart(ref CartDialog cd)
{
if (!loggedOn)
{
throw new BookShopException("This operation requires login.");
}
currentCustomer.showCart(ref cd);
cd.AddDisplayItems("====================================================", "Total Price: $" + CurrentCustomer.CurrentCart.Price);
}
public void showCart(ref CartDialog cd)
{
cd.AddDisplayItems(currentCart.Cart.ToArray());
}