Introduction

The sum function is used to perform the addition of two or more values, which could be either numerical values or xpath expressions.

Syntax :

• ${ixf:sum(xpathExp1, xpathExp2)} calculates the sum of the results obtained from evaluating "xpathExp1" and "xpathExp2".
• ${ixf:sum(xpathExp,"10")} the result will be the sum of the result obtained from evaluating "xpathExp" and 10.
• ${ixf:sum("10","12","100")}  the result will be 122, which is the sum of the individual results of 10, 12, and 100.

Ensure that numerical values are between double quotes : ${ixf:sum("10","12","100")},

while xpath expressions should remain without any quote enclosures.

Example :

• ${ixf:sum(Documents/Order/DeliveryAddress/OrderLine/Price,"10"}

Let's suppose that the result of Documents/Order/DeliveryAddress/OrderLine/Price is 30, so the sum is 40.

Note:

Numerical values can be also enclosed within single quotes : ${ixf:sum('10','12','100')} OR mix single and double quotes, like this: ${ixf:sum("10",'12','100')}.