A constant price element adds a price calculation based on a constant value to a constraint. First, the constraint is checked, and the price is only calculated if the constraint is met.
In addition to the product/order parameter specified for the constraint, an “apply” parameter and a “multiply” parameter may be specified. Their use is described below.
This two level approach allows a single price element to both invalidate prices for out of range parameters, and only apply a price in certain circumstances.
For example, an Eltest price element could be set up to give the following:
Constraint parameter and mode Test pt count Valid if parameter < max
Apply parameter and mode Eltest required Apply if apply param is true
Calculation method and MultiplyParam Test pt count Price = Price+(Value * MultiplyParam)
Apply parameter and mode
Each price calculation uses an “apply” parameter and an “apply” mode to determine if the price calculation should be carried out. The apply modes are:
- Never apply
- Always apply
- Apply if apply parameter is false (zero)
- Apply if apply parameter is true (nonzero)
- Apply if parameter is greater than or equal to apply parameter
- Apply if parameter is less than or equal to apply parameter
- Apply if apply parameter is in a specified list of integers
- Apply if apply parameter is not in a specified list of integers
Note: For never apply or always apply modes, the apply parameter is not used. In these cases it would be natural to choose the same parameter as the constraint parameter. For never apply mode, the calculation method is not used.
Calculation method and multiply parameter
One of four calculation methods must be selected:
- Price = Price + Value
- Price = Price * Value
- Price = Price + (Value * MultiplyParameter)
- Price = Price * (Value * MultiplyParameter)
The Value is the price element\s constant value. If the Value is added to the price then a 
icon is shown. If the Value is multiplied by the price then a 
icon is shown.
Note: For the first two calculation methods, the multiply parameter is not used.
