Sas Jacobs – författare

XML is a completely platform-agnostic data medium. Flash is able to make use of XML data, which is very useful when creating rich Internet applications. It allows you to populate Flash web interfaces with data from almost any source that supports XML as a data medium, be it databases, raw XML files, or more excitingly, .NET applications, Web Services, and even Microsoft Office applications like Excel and Word!

In this book, Sas Jacobs first introduces XML itself—what it is, its syntax, its associated technologies (such as CSS and XSLT,) and how to get XML out of your applications in a format Flash can use.

Then, she shows how to use the XML object to stream XML data into Flash, and how to use the XMLConnector component and XML Sockets to build advanced Flash/XML applications. Numerous example applications are built throughout the book, including an MP3 player, XML photo gallery, an Excel-driven web catalog, Access and Word-driven content management systems, and an XML-driven chat application.

Don''t waste time on 1,000-page tomes full of syntax; this book is all you need to get ahead in XML development. Renowned web developer Sas Jacobs presents an essential guide to XML. Beginning XML with DOM and Ajax is practical and comprehensive. It includes everything you need to know to get up to speed with XML development quickly and painlessly.

Jacobs begins by presenting an overview of XMLits syntax, rules, vocabularies, and the hows and whys of validity. She also covers the current state of XML support in todays web browsers. Next, Jacobs covers all of the basic essential uses of XML. You''ll learn how to display XML data using CSS, and transform XML data using XSLT. You''ll even learn about dynamic XML scripting using the XML DOM.

The last part of the book covers advanced server-side XML uses in real-world applications, including displaying XML data in Flash, and XML-driven PHP and ASP.NET applications. And last but not least, Jacobs provides a perfect introduction to Ajax development.

Flex is a very powerful and versatile technology for creating web application front-ends. But what every good web application needs is a robust data source, be it XML, or a database. Flex is very adaptable in terms of connecting to data sources, and that is the main focus of this book.

In Foundation Flex for Developers, author Sas Jacobs assumes that you''ve got the basics of Flex down already, and explores in detail how to create professional data-centric Flex 2 and Flex 3 applications. In the first half of the book, she starts off with a brief exploration of Flex and ActionScript 3.0, before looking at application essentials in detail—creating custom components, user and web browser interactions, binding, formatting, and validating data, debugging, and more.

In the second half of the book, the focus is on connecting Flex to data sources, and covers XML, LiveCycle Data Services, PHP, ASP.NET, and ColdFusion in detail, via a series of step-by-step case studies.

XML is the lingua franca of the Web. All designers and developers working in a web environment need a sound understanding of XML and its role in application development. Many software packages and organizations allow for the exchange of data using an XML format. Web services and RSS feeds are now commonplace.

For those working with Flash and Flex, a thorough understanding of XML is particularly important. XML documents are one option for the data provided to SWF applications. Flash and Flex can load, display, and modify XML content. These applications can also send XML content to other applications for updating or for use in different situations.

ActionScript 3.0 introduced some fundamental changes to the way in which Flash and Flex applications work with XML. One significant change is that XML is now a native data type. ActionScript 3.0 also introduced new classes and a different framework for working with external documents. These changes are based on the E4X ECMAScript standard, and they streamline and simplify the process for working with XML in Flash and Flex.

In Foundation XML and E4X for Flash and Flex, Sas Jacobs gives you an introduction to XML and E4X. She explores the XML and XMLList classes and explains E4X expressions, providing examples for both Flash and Flex. In addition to explaining how to incorporate XML documents in Shockwave Flash applications, Sas shows you approaches specific to Flash and Flex and explores real-world usage. The book finishes with two case studies. In the first, you will learn how to consume and display information and images from Flickr using Flash. In the second, you will work with Adobe Kuler in Flex.

Whether you are a designer or developer, this book will help you work with XML and make the transition from ActionScript 2.0 to ActionScript 3.0. It will also provide you with an excellent grounding if you are new to Flash and Flex.