MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guía de usuario descargar pdf (Pagina 231)

Build a distributed application with the Java adapter 231

2. Directly below the <![CDATA[ tag, add the following ActionScript import statements:

import mx.data.DataService;

import mx.collections.ArrayCollection;

import samples.contact.Contact;

Create variables

In this section, you add variables for the ArrayCollection and DataService objects to the script

block.

1. Directly below the import statements in the script block, add the following variable

declarations for the

ds, contacts, and contact variables:

public var ds:DataService;

public var contacts:ArrayCollection;

public var contact:Contact;

Add a [Bindable] metadata tag directly above the contacts variable declaration:

[Bindable]

public var contacts:ArrayCollection;

The [Bindable] metadata tag indicates to the MXML compiler that contacts is a

bindable property. By making it a bindable property, you can bind it into the

dataProvider property of the DataGrid control and display data in the DataGrid

control.

Bind the ArrayCollection object to the DataGrid

In this section, you bind the contact ArrayCollection object to the DataGrid control’s

dataProvider property to fill the DataGrid control with data from the ArrayCollection

object.

1. Add the boldface text to the <mx:DataGrid> tag:

<mx:DataGrid id="dg" dataProvider="{contacts}" editable="true">

Save the lesson2.mxml file.

Fill the ArrayCollection object with data

In this section, you write an event listener method that creates a DataService object and an

ArrayCollection object, and calls the DataService’s

fill() method to fill the ArrayCollection

with data.

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MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guía de usuario Pagina 231