Using Events The Components and Classes of Ext JS fire a broad range of events at various points in their lifecycle. Events allow your code to react to changes around your application. They are a key concept within Ext JS. 在ExtJS组件和类的生命周期中,会触发许多类型的事件…

  1.    ExtJs 结构树.. 2 2.    对ExtJs的态度.. 3 3.    Ext.form概述.. 4 4.    Ext.TabPanel篇.. 5 5.    Function扩展篇.. 7 6.    Ext.data.Store篇.. 10 7.    Ext.data.JsonReader篇一.. 12 8.    Ext.data.JsonReader篇二.. 15 9.    Ext.data.HttpProxy篇.. 19 10.     Ext.data.…

参考 :http://blog.csdn.net/zhangxin09/article/details/6914882 An Ext JS application's UI is made up of one or many widgets called Components. All Components are subclasses of theExt.Component class which allows them to participate in automated lifecycl…

events 模块只提供了一个对象: events.EventEmitter. EventEmitter 的核心就是事件触发与事件监听器功能的封装. 可以通过require("events");来访问该模块. var events = require('events'); var emitter = new events.EventEmitter() EventEmitter 的每个事件由一个事件名和若干个参数组成,事件名是一个字符串,通常表达一定的语义.对于每个事件,EventEmi…

The Tree Panel Component is one of the most versatile Components in Ext JS and is an excellent tool for displaying heirarchical data in an application. Tree Panel extends from the same class as Grid Panel, so all of the benefits of Grid Panels - feat…

MVC Architecture   MVC架构 Contents File Structure Creating the application in app.js Defining a Controller Defining a View Controlling the grid Creating a Model and a Store Saving data with the Model Deployment Next Steps Large client side application…

Events, Protocols and Delegates   事件.协议和委托 This article presents the key iOS technologies used to receive callbacks and to populate user interface controls with data. These technologies are events, protocols, and delegates. This article explains what…

extjs中常常会用到renderTo或applyTo配置选项.这里,我就比較下两者的差别与使用方法.1.renderTo与render方法相应2.applyTo与applyToMarkup方法相应 一.applyTo的使用:1.applyTo所指向的el元素必需要有父节点.2.applyTo所指向的el元素实际上是充当了对象要渲染的模板,对象是渲染在其父节点内.即对象实例化后所产生的html代码是插入在el元素的父节点内,而el元素本身将仅仅作为模板,并不作为真正的在其位置上的元素,既然作为模…

Fields are used to define what a Model is. They aren't instantiated directly - instead, when we create a class that extendsExt.data.Model, it will automatically create a Field instance for each field configured in a Model. For example, we might set u…

This is a static class containing the system-supplied data types which may be given to a Field. Types是一个静态类,包含将用在Field的,系统提供的数据类型. The properties in this class are used as type indicators in the Field class, so to test whether a Field is of a certain…