Formulas
Introduction
If you want to calculate the content of a cell based on the values in other columns, you can use a formula.
For instance, if your grid is used to calculate line totals.
The total in the most right column is calculated as
{unit} * {price} * (100 - {discount}) / 100
Configuration
Setup a custom field grid with following configuration
gd.columns = unit, price, discount, total
gd.tablename=formularesult
gd.ds = jira
col.unit = Number of units
col.unit.type = integer
col.price = Price
col.price.type = number
#
# Discount can be any integer between 0 and 50
#
col.discount = Discount
col.discount.type = integer
col.discount.minValue = 0
col.discount.maxValue = 50
#
# The total will contain the calculated value
#
col.total = total
col.total.type = number
col.total.formula = {unit} * {price} * (100 - {discount}) / 100