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Download Adobe Flex 3.0 For Dummies (For Dummies (Computer Tech)) by Doug McCune, Deepa Subramaniam PDF

By Doug McCune, Deepa Subramaniam

ISBN-10: 0470277920

ISBN-13: 9780470277928

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21 22 Par t I: Introducing Flex Follow these steps to use the Label control to display Hello World in your application: 1. Write an tag directly in the MXML code editor, which opens by default when you create a new Flex project. Flex Builder’s code hinting feature uses built-in intelligent heuristics to suggest different tags and attributes based on the characters you’re typing. As you start typing an opening tag, <, Flex Builder makes component suggestions in a drop-down list. As you continue typing the mx: namespace prefix and the first letter of Label, L, Flex Builder narrows its suggestions to match the characters you type.

Dummies { public class Employee { public function Employee() { //in the constructor you can initialize the object } //define the public variables public var firstName:String; public var lastName:String; public var socialSecurityNumber:String; public var salary:Number; //define the public methods public function doTask(task:Task):void { //do something to accomplish the task } ➝3 ➝5 ➝11 ➝17 public function takeBreak(minutes:Number):void { } public function submitTimesheet(timesheet:Timesheet):void { } public function complainAboutBoss():void { } } } Listing 3-2 defines the outline structure of your Employee class: ➝3 You name the class on Line 3, public class Employee, which defines the Employee class, and corresponds with the filename of the ActionScript file in your project.

For example, mouse interaction events use the MouseEvent class, which adds the localX, localY, stageX, and stageY properties that define the coordinates, relative to the component and the stage, of the mouse when the event was dispatched. The example in Listing 3-8 adds a listener to the change event of a horizontal slider control. When the HSlider dispatches the change event, it dispatches a SliderEvent event, which has a few specific properties that tell you more about the interaction with the slider.

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