ext json数据的读取

Ext.onReady(function(){
var data={
totalcount:10,
root:[
{name:'name1',id:'id1',sex:'sex1'},
{name:'name2',id:'id2',sex:'sex2'},
{name:'name3',id:'id3',sex:'sex3'},
{name:'name4',id:'id4',sex:'sex4'},
{name:'name5',id:'id5',sex:'sex5'},
{name:'name6',id:'id6',sex:'sex6'},
{name:'name7',id:'id7',sex:'sex7'},
{name:'name8',id:'id8',sex:'sex8'},
{name:'name9',id:'id9',sex:'sex9'},
{name:'name10',id:'id10',sex:'sex10'}
]
};
var reader = new Ext.data.JsonReader(
{root:'root'},[
{name:'name'},
{name:'id'},
{name:'sex'}
]
);

var proxy = new Ext.data.MemoryProxy(data);

var store = new Ext.data.Store({
proxy: proxy,
reader:reader
});

var cm = new Ext.grid.ColumnModel([
{header:'名字',dataIndex:'name'},
{header:'id号',dataIndex:'id'},
{header:'性别',dataIndex:'sex'},
]);

var grid = new Ext.grid.GridPanel({
store:store,
cm:cm,
autoHeight : true
});
grid.render('hello');
});为何我这样数据读取不了？
json数据应该用什么proxy？

解决方案 »

  1.   


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css" />
    <script type="text/javascript" src="extjs/adapter/ext/ext-base.js"></script>
    <script type="text/javascript" src="extjs/ext-all.js"></script>
    <script>
    Ext.onReady(function(){
    var data={
            totalcount:10,
            root:[
            {name:'name1',id:'id1',sex:'sex1'},
            {name:'name2',id:'id2',sex:'sex2'},
            {name:'name3',id:'id3',sex:'sex3'},
            {name:'name4',id:'id4',sex:'sex4'},
            {name:'name5',id:'id5',sex:'sex5'},
            {name:'name6',id:'id6',sex:'sex6'},
            {name:'name7',id:'id7',sex:'sex7'},
            {name:'name8',id:'id8',sex:'sex8'},
            {name:'name9',id:'id9',sex:'sex9'},
            {name:'name10',id:'id10',sex:'sex10'}
            ]
        };
        var reader = new Ext.data.JsonReader(
        {root:'root'},[
        {name:'name'},
        {name:'id'},
        {name:'sex'}
        ]    
        );
        
        var proxy = new Ext.data.MemoryProxy(data);
        var store = new Ext.data.Store({
            proxy: proxy,
            reader:reader
        });
    store.load();
        var cm = new Ext.grid.ColumnModel([
        {header:'名字',dataIndex:'name'},
        {header:'id号',dataIndex:'id'},
        {header:'性别',dataIndex:'sex'}
        ]);
        var grid = new Ext.grid.GridPanel({
            store:store,
            cm:cm,
            autoHeight : true
        });
        grid.render('hello');    });
    </script>
    <div id="hello"></div>
      

  2.   

    奥忘了load数据。
    谢谢：）