Book Image

Ext JS 3.0 Cookbook

Book Image

Ext JS 3.0 Cookbook

Overview of this book

Using Ext JS you can easily build desktop-style interfaces in your web applications. Over 400,000 developers are working smarter with Ext JS and yet most of them fail to exercise all of the features that this powerful JavaScript library has to offer. Get to grips with all of the features that you would expect with this quick and easy-to-follow Ext JS Cookbook. This book provides clear instructions for getting the most out of Ext JS with and offers many exercises to build impressive rich internet applications. This cookbook shows techniques and "patterns" for building particular interface styles and features in Ext JS. Pick what you want and move ahead. It teaches you how to use all of the Ext JS widgets and components smartly, through practical examples and exercises. Native and custom layouts, forms, grids, listviews, treeviews, charts, tab panels, menus, toolbars, and many more components are covered in a multitude of examples.The book also looks at best practices on data storage, application architecture, code organization, presenting recipes for improving themóour cookbook provides expert information for people working with Ext JS.
Table of Contents (15 chapters)
Ext JS 3.0 Cookbook
About the Author
About the Reviewer

Changing the look of a progress bar

In this recipe, you will learn how easy it is to change the look of the progress bar.

Let's see how it is done.

How to do it...

  1. 1. Create the styles for the custom look of the progress bar:

    .x-progress-wrap.custom {
    border:1px solid #cccccc;
    padding:0 2px;
    .ext-ie .x-progress-wrap.custom {
    .custom .x-progress-inner {
    background: #fff;
    .custom .x-progress-bar {
    background:transparent url(img/pbar.gif) repeat-x 0 0;
    border-top:1px solid #BEBEBE;
    border-bottom:1px solid #EFEFEF;
  2. 2. Define the progress bar and specify that it will use the custom CSS class:

    Ext.onReady(function() {
    var pBar = new Ext.ProgressBar({
    id: 'pBar',
    width: 300,
    renderTo: 'pBarDiv',
  3. 3. Now, create a handler for the progress bar's update event that will change the status message shown on the page:

    pBar.on('update', function(val) {
    //Handle this event if you need to
    // execute code...