User Guide

DataSet component (Flash Professional only) 327

myDataSet.last();

while(myDataSet.hasPrevious()) {

var price = myDataSet.currentItem.price;

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

myDataSet.currentItem.price = price;

myDataSet.previous();

}

See also

DataSet.currentItem

, DataSet.skip(), DataSet.previous()

DataSet.hasSort()

Availability

Flash Player 7.

Edition

Flash MX Professional 2004.

Usage

dataSet.hasSort(sortName)

Parameters

sortName

A string that contains the name of a sort created with DataSet.addSort().

Returns

A Boolean value.

Description

Method; returns true if the sort specified by sortName exists; otherwise, returns false.

Example

The following code tests if a sort named “customerSort” exists. If the sort already exists, it is made

the current sort by means of

DataSet.useSort(). If a sort by that name doesn’t exist, one is

created by means of

DataSet.addSort().

if(myDataSet.hasSort("customerSort")){

myDataSet.useSort("customerSort");

} else {

myDataSet.addSort("customerSort", ["customer"],

DataSetIterator.Descending);

}