Book Image

Ext JS 4 Plugin and Extension Development

By : Abdullah Al Mohammad
Book Image

Ext JS 4 Plugin and Extension Development

By: Abdullah Al Mohammad

Overview of this book

Ext JS is a pure JavaScript application framework for building interactive web applications using techniques such as Ajax, DHTML, and DOM scripting. Ext JS 4 Plugin and Extension Development is a practical, step-by-step tutorial which guides you to learn and develop ExtJS plugins and extensions. There are a lot of examples with explanations and plenty of code provided to make it easier and quicker to pick up. Starting with the fundamentals, this book introduces some of the ExtJS library and community provided plugins and extensions and finishes with several hands-on, real world development examples. You will get a clear concept of ExtJS plugins and extensions and learn how to use them. You will also learn how to develop an ExtJS plugin and extension by going through several examples with code and screenshots. Ext JS 4 Plugin and Extension Development book will provide you with the knowledge to develop ExtJS plugins and extensions using real-life examples.
Table of Contents (16 chapters)
Ext JS 4 Plugin and Extension Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

The CellEditing plugin


The Ext.grid.plugin.CellEditing plugin injects editing at the cell level for a Grid. The editor field can be a field instance or a field configuration which needs to be provided within the editor configuration option within the columns definition. With the CellEditing plugin we can edit a cell at any time. If an editor is not specified for a particular column, that cell cannot be edited and it will be skipped when activated via the mouse or the keyboard.

When we configure a column to use an editor for cell editing, we should choose an appropriate field type to match the data type that this editor field will be editing. For example, to edit a date value in the cell, it would be useful to specify Ext.form.field.Date as the editor.

Here, in the following code we are defining a grid class in which we are using the CellEditing plugin to edit the cells:

Ext.define('Examples.view.cellediting.CellEditingGrid', {
  extend : 'Ext.grid.Panel',
  alias : 'widget.celleditingGrid'...