EXTJS入门教程及其框架搭建

EXTJS是一个兼容AJAX的前台WEB UI的框架，在普通的HTML文件的 BODY 元素中无须写任何HTML代码，就能产生相应的表格等元素。

 

首先是为每一个页面定义一个类，再以EXTJS的规范格式增加所需的元素，可以使用所见所得的工具：extbuilder 来操作，这个类将以XXXXX.js的文件名保存，最后在相应的HTML页面中引入相关的JS和CSS文件：

1 <script type=" text/javascript " src="/EXTJS/ext-2.2/adapter/ext/ext-base.js "></script>
2 <script type=" text/javascript " src="/EXTJS/ext-2.2/ext-all-debug.js "></script>
3 <link rel=" stylesheet " type=" text/css " href=" /EXTJS/ext-2.2/resources/css/ext-all.css " />
4 <script type=" text/javascript " src= "XXXXX.js "></script>

并在BODY中加入下面这段JAVA SCRIPT：

01 <script>
02  Ext.onReady( function () {
03  Ext.QuickTips.init();
04  Ext.form.Field.prototype.msgTarget='side';
05  var viewport=new Ext.Viewport( {
06  layout : 'fit',
07  border : false,
08  items : [new system.XXXXX()]
09  });
10  viewport.render();
11  });
12  </script>

其中XXXXX就是之前新加的JS类，则EXT引擎就会以一定的非常漂亮的样式渲染出页面来，并且以后的页面风格要改变，只须更换CSS即可，无须改动页面。
附完整的代码： PagingGridPanel.js

001 Ext.namespace('system');
002 system.PagingGridPanel = function(config) {
003     Ext.applyIf(this, config);
004     this.initUIComponents();
005     system.PagingGridPanel.superclass.constructor.call(this);
006     this.loadData();
007 };
008 Ext.extend(system.PagingGridPanel, Ext.Panel, {
009     initUIComponents : function() {
010         // BEGIN OF CODE GENERATION PARTS, DON'T DELETE CODE BELOW
011         this.store1 = new Ext.data.Store({
012             proxy : new Ext.data.MemoryProxy({
013                 total : 2,
014                 root : [{
015                     age : 56,
016                     name : "IOyFo"
017                 }, {
018                     age : 239,
019                     name : "87tPp"
020                 }]
021             }),
022             reader : new Ext.data.JsonReader({
023                 root : "root",
024                 total : "total",
025                 id : "id"
026             }, [{
027                 mapping : "name",
028                 name : "name"
029             }, {
030                 type : "int",
031                 mapping : "age",
032                 name : "age"
033             }])
034         });
035  
036         this.gridPanel1 = new Ext.grid.GridPanel({
037             bbar : new Ext.PagingToolbar({
038                 xtype : "paging",
039                 emptyMsg : "No data to display",
040                 displayMsg : "Displaying {0} - {1} of {2}",
041                 store : this.store1
042             }),
043             selModel : new Ext.grid.RowSelectionModel({}),
044             columns : [{
045                 header : "name",
046                 dataIndex : "name",
047                 sortable : true,
048                 hidden : false
049             }, {
050                 header : "age",
051                 dataIndex : "age",
052                 sortable : true,
053                 hidden : false
054             }],
055             store : this.store1,
056             height : 200,
057             tbar : new Ext.Toolbar([{
058                 handler : function(button, event) {
059                     this.onButtonClick(button, event);
060                 }.createDelegate(this),
061                 text : "button"
062             }, {
063                 handler : function(button, event) {
064                     this.onButtonClick(button, event);
065                 }.createDelegate(this),
066                 text : "button2"
067             }])
068         });
069  
070         Ext.apply(this, {
071             items : [this.gridPanel1]
072         });
073         // END OF CODE GENERATION PARTS, DON'T DELETE CODE ABOVE
074     },
075     loadData : function() {
076         this.store1.load();
077     },
078     onButtonClick : function(button, event) {
079         this.store1 = new Ext.data.Store({
080             proxy : new Ext.data.MemoryProxy({
081                 total : 2,
082                 root : [{
083                     age : 56,
084                     name : "88888"
085                 }, {
086                     age : 239,
087                     name : "99999"
088                 }]
089             }),
090             reader : new Ext.data.JsonReader({
091                 root : "root",
092                 total : "total",
093                 id : "id"
094             }, [{
095                 mapping : "name",
096                 name : "name"
097             }, {
098                 type : "int",
099                 mapping : "age",
100                 name : "age"
101             }])
102         });
103         this.store1.reload();
104     }
105 });

index.html

01 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
02 <html xmlns="http://www.w3.org/1999/xhtml">
03 <head>
04 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
05  <script src="http://cdn.bootcss.com/extjs/3.4.1-1/adapter/ext/ext-base.js"></script>
06  <script src="http://cdn.bootcss.com/extjs/3.4.1-1/ext-all-debug.js"></script>
07 <link href="http://cdn.bootcss.com/extjs/3.4.1-1/resources/css/ext-all.css" rel="stylesheet"/>
08  <script type="text/javascript" src="PagingGridPanel.js"></script>
09 </head>
10 <body>
11 <script>
12     Ext.onReady(function() {
13         Ext.QuickTips.init();
14         Ext.form.Field.prototype.msgTarget = 'side';
15         var viewport = new Ext.Viewport( {
16             layout : 'fit',
17             border : false,
18             items : [new system.PagingGridPanel()]
19         });
20         viewport.render();
21     });
22 </script>
23  
24 </body>
25 </html>

项目截图

项目截图

运行截图

posted @ 2014-04-02 10:36  super1234  阅读(2246)  评论(0)    收藏  举报