I have an E-cart but I dont know how to go about adding the total costs of all the items together. moreover, pls note that each item cost is got by iteration, Any help please??

please are u dealing with Gridview? if yes
then u can access the current row being bound to the gridview in the following event and the handler
1. rowcreated
2. rowdatabound

you can access the "e" which is a parameter passed in the those events.
the e.rows.dataitem return an object of the type datarowview. cast the object to the datarowview then
access the appropriate column of that row instance.

hope that helps
use msdn if ur developing on microsoft platform

I'm using Apache Tomcat as my server. for better understanding, check www.coreservlets.com and search for shopping cart

this may not be the best solution, try using

multidimensional array
or
linked list

i dont still know why you dont get my problem.i need to add values of a column