Book Image

YUI 2.8: Learning the Library

Book Image

YUI 2.8: Learning the Library

Overview of this book

The YUI Library is a set of utilities and controls written in JavaScript for building Rich Internet Applications, across all major browsers and independently of any server technology. There's a lot of functionality baked into YUI, but getting to and understanding that functionality is not for the faint of heart. This book gives you a clear picture of YUI through a step-by-step approach, packed with lots of examples.YUI 2.8: Learning the Library covers all released (non-beta) components of the YUI 2.8 Library in detail with plenty of working examples, looking at the classes that make up each component and the properties and methods that can be used. It includes a series of practical examples to reinforce how each component should/can be used, showing its use to create complex, fully featured, cross-browser, Web 2.0 user interfaces. It has been updated from its first edition with the addition of several chapters covering several new controls and enriched with lots of experience of using them.You will learn to create a number of powerful JavaScript controls that can be used straightaway in your own applications. Besides giving you a deep understanding of the YUI library, this book will expand your knowledge of object-oriented JavaScript programming, as well as strengthen your understanding of the DOM and CSS. The final chapter describes many of the tools available to assist you the developer in debugging, maintaining, and ensuring the best quality in your code. In this new edition, all the examples have been updated to use the most recent coding practices and style and new ones added to cover newer components. Since the basic documentation for the library is available online, the focus is on providing insight and experience.The authors take the reader from beginner to advanced-level YUI usage and understanding.
Table of Contents (18 chapters)
YUI 2.8 Learning the Library
Credits
About the Authors
About the Reviewers
Preface

Chapter 9. DataSource and AutoComplete

We've seen how to retrieve remote information via the Connection manager. A lot of the information we use is structured as tables; anything coming from a database server is likely to be tabular. In this chapter, we're going to look at the DataSource, which allows us to fetch tabular data from different sources, both local and remote, and in different formats, extract the fields, parse them if necessary, and deliver them to the component that requested them. We will also see one of these clients, the AutoComplete control, which offers a list of choices based on what you type. Two more components use DataSource: DataTable, which we'll see shortly, and Charts, which is still beta and won't be covered.

The skills that you will take away from this chapter include:

  • The different sources DataSource can reach

  • The various data formats supported

  • How to tell DataSource what to extract and how to parse it

  • How to implement an autocomplete text field linked to a live...