为什么Extjs grid表格里只有一条数据

为什么Extjs grid表格里只有一条数据 - Web 开发 / Ajax
新手提问，Ext.onReady(function(){
//Ext.MessageBox.alert('弹窗','我是一个Div');
//创建表格的列信息
var cm = new Ext.grid.ColumnModel([
{header:'编号',dataIndex:'id'},
{header:'姓名',dataIndex:'name'},
{header:'性别',dataIndex:'sex'},
{header:'描述',dataIndex:'descn'}
]);

var data = [
['1','张三','男','描述一'],
['2','李四','女','描述二'],
['3','王五','男','描述三'],
['4','赵六','女','描述四'],
['5','小七','男','描述五'],
];

var store = new Ext.data.Store({
proxy: new Ext.data.MemoryProxy(data),
reader: new Ext.data.ArrayReader({},[
{name:'id'},
{name:'name'},
{name:'sex'},
{name:'descn'}
])
});
store.load();

var grid = new Ext.grid.GridPanel({
renderTo:'div',
striptRows:true,
store:store,
title:'表格测试',
cm:cm
});

})

------解决方案--------------------
1 grid加配置项 autoHeight:true,
2 data 最后一项不要加逗号

HTML code


<!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>
var cm = new Ext.grid.ColumnModel([
    {header:'编号',dataIndex:'id'},   
    {header:'姓名',dataIndex:'name'}, 
    {header:'性别',dataIndex:'sex'},
    {header:'描述',dataIndex:'descn'}
]);

var data = [
    ['1','张三','男','描述一'], 
    ['2','李四','女','描述二'],
    ['3','王五','男','描述三'],
    ['4','赵六','女','描述四'],
    ['5','小七','男','描述五']
];

var store = new Ext.data.Store({
    proxy: new Ext.data.MemoryProxy(data),   
    reader: new Ext.data.ArrayReader({},[
        {name:'id'},   
        {name:'name'}, 
        {name:'sex'},
        {name:'descn'}
    ])   
});
store.load();
Ext.onReady(function(){
    var grid = new Ext.grid.GridPanel({
        renderTo:'div', 
        striptRows:true,
        autoHeight:true,
        store:store,
        title:'表格测试',
        cm:cm
    });
});
</script>
<div id="div"></div>

------解决方案--------------------

reader 里设置一个参数   id : 'id'

为什么Extjs grid表格里只有一条数据

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