internal static void addItemToCart(object sender, ref LineItems _shoppingCart, ref int _runningTotal)
{
//if(CurrentInvoice.LineItems.Where())
DataGridRow row = sender as DataGridRow;
Item selectedItem = (row.Item as Item);
if (selectedItem != null)
{
//ifshoppingcart already contains item with same itemcode, then just add 1
if (_shoppingCart.containsItem(selectedItem.ItemCode))
{
_shoppingCart.lineItems.Where(x => x.Item.ItemCode == selectedItem.ItemCode).FirstOrDefault().Quantity++;
}
//otherwise add selectedItem to the running list
else
{
_shoppingCart.addLineItem(new LineItem(selectedItem, 1));
}
_runningTotal += Int32.Parse(selectedItem.Cost);
}
}