Ext.data.JsonStore的用法

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>

你可能感兴趣的:(JavaScript,JavaScript)