• **Total** – Calculates the total for an order form.

  Text

  

• **SubTotal** – Calculates the total of all shipments in an order form.

  Text

  

• **HandlingTotal** – Calculates the handling total for an order form.

  Text

  

• **ShippingSubtotal** – Calculates the shipping subtotal for an order form.

  Text

  

• **OrderDiscountTotal** – Calculates the order form discount amount. It is the total of all order-level discounts of all line items in all shipments in an order form.

  Text

  

• **DiscountTotal** – Calculates the order form discount total. It is the total of

  • order-level discount amounts

  • line item discount amounts for all line items in all shipments

  • shipment discount amounts of all shipments in an order form

  Text

  

• **OrderFormTotals** – Calculates the order form total.

  Text

  

• **TaxTotal** – Calculates an order form's tax total.

  Text

  

## Change the default calculation

## Change the default validation

The default implementation validates that the total is not negative after the calculation. To change the behavior, override the appropriate method: ValidateTotal, ValidateSubtotal, ValidateHandlingTotal, ValidateShippingSubtotal, or ValidateTaxTotal.