Order total during checkout

Question

Hey All,
Can anyone tell me how I can use the Order object that I retrieve on the base pages to overwrite the total that netpoint is using during the checkout? I want to have my calculated total that is displayed on each checkout page and used in the order that is saved into the database.

Answer 1

Hi Curtis,
NPOrder.Calculate() should be used to update order totals.  This method applies shipping, handling, taxes and sets subtotal and grandtotal.
You should try to use this or you may end up with rounding problems or the dreaded negative discount.
If you need to change prices on lineitems, do so you can get the lineitems with NPOrder.OrderDetail.
NPBasePage bp = (NPBasePage)Page;
NPOrder o = new NPOrder(bp.UserID, bp.SessionID);
foreach(OrderDetail od in o.OrderDetail){
   od.PurchasePrice += 100000000000000000;
   od.Save();
o.Calculate();