MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guida Utente Scaricare il pdf (Pagina 232)

232 Use the Data Management Service

1. Add the following method declaration directly under the variable declarations to create an

event listener:

public function initApp():void {

}

Add the boldface text to the initApp() method to create a DataService component and an

ArrayCollection object when the

initApp() method is called.

The

ds DataService connects to the server-side contact Data Management Service

destination, which is specified in its one argument.

public function initApp():void {

contacts = new ArrayCollection();

ds = new DataService("contact");

}

Add the boldface text to the initApp() method to call the DataService object’s fill()

method when the

initApp() method is called.

The

fill() method requests data from the server-side Data Management Service

destination and fills the contacts ArrayCollection with that data. The DataService object

manages all updates, additions, and deletions to the data in the ArrayCollection.

public function initApp():void {

contacts = new ArrayCollection();

ds = new DataService("contact");

ds.fill(contacts);

}

Add the boldface text to the <mx:Application> tag to call the initApp() method when

the contact application is initialized:

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

creationComplete="initApp();">

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MACROMEDIA COLDFUSION MX 7.0.2-USING COLDFUSION MX WITH FLEX 2 Guida Utente Pagina 232