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December 5, 2007

MXML and ActionScript Developing interfaces for RIAs: Providing XML to controls with E4X using Flex

This chapter is taken from the authorized Flex curriculum built by Adobe Customer Training/Partner Enablement courses that focus on retrieving and manipulating data for rich Internet applications (RIAs).
In this section of the course, you will learn how to use XML objects in your applications using E4X, a new set of classes and functionality for working with XML data in ECMAScript. You will also learn how to use these XML objects as data providers, using the XMLListCollection class. In particular, you will learn about the following topics:
Understanding XML structure
Working with XML data in ActionScript 3.0
Using the Tree control
Using the ICollectionView Interface
This chapter has a PDF document which has content and walkthrough steps. The walkthroughs are hands-on activities that you complete in Flex. These walkthroughs are key to learning and should be done as you encounter them in the text. The files used in the walkthroughs are contained in the ZIP file (which you can download below). Follow the instructions below to unzip and install the files. This chapter assumes you have installed Flex Builder 3.
Prerequisites
A solid understanding of using Flex UI components and retrieving data using HTTPService.
Requirements
In order to make the most of this article, you need the following software and files:
Flex Builder 3 Beta
Download
Learn more
Download the lesson and sample code
e4x.pdf (PDF, 267K) - The lesson in PDF format
e4xStudentFiles.zip (ZIP, 8.41 MB) - The sample code referred to in the walkthroughs
Installation instructions
Unzip the file e4xStudentFiles.zip file to the root of your C: drive.
Note: The ZIP will install files to the C:\adobeTraining\flex3 directory.
In Flex Builder 3 select File > Switch Workspace ...
Select the C:\adobeTraining\flex3\e4xStudentFiles\_workspace folder.

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