Book Image

Ext JS 4 Web Application Development Cookbook

By : Andrew Duncan, Stuart Ashworth
Book Image

Ext JS 4 Web Application Development Cookbook

By: Andrew Duncan, Stuart Ashworth

Overview of this book

<p>Ext JS 4 is Sencha’s latest JavaScript framework for developing cross-platform web applications. Built upon web standards, Ext JS provides a comprehensive library of user interface widgets and data manipulation classes to turbo-charge your application’s development. Ext JS 4 builds on Ext JS 3, introducing a number of new widgets and features including the popular MVC architecture, easily customisable themes and plugin-free charting. <br /><br /><em>Ext JS 4 Web Application Development Cookbook</em> works through the framework from the fundamentals to advanced features and application design. More than 130 detailed and practical recipes demonstrate all of the key widgets and features the framework has to offer. With this book, and the Ext JS framework, learn how to develop truly interactive and responsive web applications.<br /><br />Starting with the framework fundamentals, you will work through all of the widgets and features the framework has to offer, finishing with extensive coverage of application design and code structure.<br /><br />Over 110 practical and detailed recipes describe how to create and work with forms, grids, data views, and charts. You will also learn about the best practices for structuring and designing your application and how to deal with storing and manipulating data. The cookbook structure is such that you may read the recipes in any order.<br /><br />The <em>Ext JS 4 Web Application Development Cookbook</em> will provide you with the knowledge to create interactive and responsive web applications, using real life examples.</p>
Table of Contents (19 chapters)
Ext JS 4 Web Application Development Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Populating your form with data


After creating our beautifully crafted and user-friendly form we will inevitably need to populate it with some data so users can edit it. Ext JS makes this easy, and this recipe will demonstrate four simple ways of achieving it.

We will start by explaining how to populate the form on a field-by-field basis, then move on to ways of populating the entire form at once. We will also cover populating it from a simple object, a Model instance, and a remote server call.

Getting ready

We will be using the form created in this chapter's first recipe as our base for this section, and many of the subsequent recipes in this chapter, so please look back if you are not familiar with it.

All the code we will write in this recipe should be placed under the definition of this form panel.

You will also require a working web server for the There's More example, which loads data from an external file.

How to do it...

We'll demonstrate how to populate an entire form's fields in bulk and...