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

Laying out items within a container using CSS-style absolute positioning

Sometimes, you need to position components using the standard X and Y coordinates. In this recipe, I position two panels in the container using an absolute layout. The following screenshot shows how the end result will look like:

How to do it...

  1. 1. Create a couple of panels that will be absolute-positioned:

    panel1=new Ext.Panel({
    title: 'Panel 2',
    // When using absolute layouts,
    // you need to specify the coordinates.
    x: 50,
    y: 50,
    width: 200,
    html: 'Positioned at x:50, y:50'
    panel2=new Ext.Panel({
    title: 'Panel 2',
    x: 200,
    y: 200,
    width: 300,
    height: 150,
    html: 'Positioned at x:100, y:100'
  2. 2. Create a container for the panels:

    var viewport=new Ext.Viewport({
    // Position items within this container using
    // CSS-style absolute positioning.
    items:[panel1, panel2]

How it works...

Locating items in specific positions is achieved by assigning an absolute layout for the layout configuration...