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

DataTable classes


DataTable has two main classes that we will regularly create, YAHOO.widget.DataTable, the most basic DataTable, and YAHOO.widget.ScrollingDataTable, a subclass of the regular DataTable suitable for small spaces that allows the data to scroll vertically and horizontally while keeping the headers always visible and in sync with the data. Whatever we say about DataTable also applies to ScrollingDataTable, except where noted.

We may also create instances of any of the built-in cell editors, all of them subclasses of YAHOO.widget.BaseCellEditor. There are six of them for different kinds of data.

We may use, though we'll never create, instances of RecordSet, Record, ColumnSet, and Column, all in the YAHOO.widget branch of the library, which are indissoluble parts of the DataTable.

DataTable stores its data in a single RecordSet that contains an array of Record objects, each made of a series of fields containing the values to be shown. The data is never stored in the DataSource...