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Ext.data.JsonStore的用法

2012-11-09 14:29 579 查看

Ext.data.JsonStore
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="resources/css/ext-all.css" />
<script type="text/javascript" src="adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext-all.js"></script>
<script>
Ext.onReady(function(){
// NOTE: This is an example showing simple state management. During development,
// it is generally best to disable state management as dynamically-generated ids
// can change across page loads, leading to unpredictable results.  The developer
// should ensure that stable state ids are set for stateful components in real apps.
Ext.state.Manager.setProvider(new Ext.state.CookieProvider());
var store=new Ext.data.JsonStore({

//results 表示结果数
//rows 表示从后台传过来的JSON数据
data:{ "results": 2, "rows":[
{"id":1, "city": "suzhou", "areacode": "0512", "perincome": "2500" },
{"id":2, "city": "nanjing", "areacode": "025", "perincome": "2200" }]},
//自动加载(不能用store.load())
autoLoad:true,
totalProperty:"results",
root:"rows",
fields:['title',  {name:'city',mapping:'city'},
{name:'areacode',type:'int'},
{name:'perincome',mapping:'perincome',type:'int'},
{name:'id',mapping:'id',type:'int'}
]
});

// create the Grid
var grid = new Ext.grid.GridPanel({
store: store,
columns: [
{id:'city',header: "city", width: 400, sortable: true, dataIndex: 'city'},
{header: "areacode", width: 200, sortable: true, dataIndex: 'areacode'},
{header: "perincome", width: 200, sortable: true, dataIndex: 'perincome'}
],
stripeRows: true,
autoExpandColumn: 'city',
height:280,
width:600,
title:'Array Grid'
});
grid.on('rowclick', function(grid, rowIndex, e) {
var recordr = store.getAt(rowIndex);
alert('id is ' + recordr.get('id') + ',city name is ' + recordr.get('city'));
// window.open('index.html');//设置转向地址,用于对row的操作,举个例子 当然也可以用location.href等
});
//把此grid放进grid-example里面
grid.render('grid-example');
});
</script>
<div id="grid-example"></div>
</html>

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