User Guide

DataSet.length 381

The following example iterates over all the items in the current view of the collection (starting

from the its last item) and performs a calculation on the

price property of each item:

my_ds.addItem({name:"item a", price:16});

my_ds.addItem({name:"item b", price:9});

my_ds.last();

while (my_ds.hasPrevious()) {

my_ds.currentItem.price *= 0.5; // Everything's 50% off!

my_ds.previous();

}

for (var i in my_ds.items) {

trace(my_ds.items[i].name + ": " + my_ds.items[i].price);

}