Proxies are used by Stores to handle the loading and saving of Model data. Usually developers will not need to create or interact with proxies directly. proxy被Store使用以实现加载和保存model数据.通常,开发者不需要直接创建代理或代理交互. Types of Proxy 代理的类型 There are two main type…
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…
Readers are used to interpret data to be loaded into a Model instance or a Store - often in response to an AJAX request. In general there is usually no need to create a Reader instance directly, since a Reader is almost always used together with aPro…
The Store class encapsulates a client side cache of Model objects. Stores load data via a Proxy, and also provide functions for sorting, filtering and querying the model instances contained within it. Store类封装了Model对象在客户端的缓存.store通过proxy加载数据,并且提供排序.过…
A Model represents some object that your application manages. For example, one might define a Model for Users, Products, Cars, or any other real-world object that we want to model in the system. Models are registered via the model manager, and are us…
参考:http://blog.csdn.net/zhangxin09/article/details/6885175 The Grid Panel is one of the centerpieces of Ext JS. It's an incredibly versatile component that provides an easy way to display, sort, group, and edit data. Grid 面板为 Ext JS 的大头核心之一.它是一个通用性很强…
A Form Panel is nothing more than a basic Panel with form handling abilities added. Form Panels can be used throughout an Ext application wherever there is a need to collect data from the user. In addition, Form Panels can use any Container Layout, p…
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…
