extjs chart显示问题

Question

很奇怪的问题，从官网的example抄来的代码运行有问题....alert(3)那句代码没有执行到，注释掉Items就可以看到window以及alert(3)语句的执行。求高手分析为什么不能显示piechart。
asp返回的数据:
{'data':[{'CreateTime':'2010/7/31 21:10:13','SubTotal':800.00},{'CreateTime':'2010/8/1 9:08:01','SubTotal':1350.00},{'CreateTime':'2010/1/1 9:11:01','SubTotal':500.00},{'CreateTime':'2010/1/1 9:09:02','SubTotal':222.00}],'totalCount':1000}

js的代码....
alert(111);
var ds = new Ext.data.Store({
autoLoad: true,
proxy: new Ext.data.HttpProxy({ url: 'GetOrder.aspx' }),
reader: new Ext.data.JsonReader({
root: 'data',
totalProperty: 'totalCount'
}, ['SubTotal', 'CreateTime']
)
});
alert(2);
var charwin = new Ext.Window({
width: 450,
height: 320,
modal: true,
autoScroll: true,
closeAction: 'close',
layout: 'fit',
maximizable: false,
title: '按类别统计',
items: {
store: ds,
xtype: 'piechart',
url: 'js/charts.swf',
dataField: 'SubTotal',
categoryField: 'CreateTime',
extraStyle:
{
dataTip:
{
border: { color: 0x2e434d, size: 2 },
font: { name: "Arial Black", size: 12, color: 0x000000 }
}, //提示框显示字体样式
legend: {
display: "bottom",
padding: 5,
spacing: 2,
font: {
color: 0x000000, family: "Arial", size: 12
},
border: {
size: 1, color: 0x999999
}
}
}
}
});

alert(3);
charwin.show();

Answer 1

我执行你的代码 没有问题啊
我的EXTJS 3.3.1,
CHROME,IE8,都可以

[code="js"]

// alert(111);
var ds = new Ext.data.JsonStore({
fields:['SubTotal', 'CreateTime'],
data:[
{'CreateTime':'2010/7/31 21:10:13','SubTotal':800.00},
{'CreateTime':'2010/8/1 9:08:01','SubTotal':1350.00},
{'CreateTime':'2010/1/1 9:11:01','SubTotal':500.00},
{'CreateTime':'2010/1/1 9:09:02','SubTotal':222.00}
]
}
);
//alert(2);
var charwin = new Ext.Window({
width: 450,
height: 320,
modal: true,
autoScroll: true,
closeAction: 'close',
layout: 'fit',
maximizable: false,
title: '按类别统计',
items: {
store: ds,
xtype: 'piechart',
url: '../../resources/charts.swf',
dataField: 'SubTotal',
categoryField: 'CreateTime',
extraStyle:
{
dataTip:
{
border: { color: 0x2e434d, size: 2 },
font: { name: "Arial Black", size: 12, color: 0x000000 }
}, //提示框显示字体样式
legend: {
display: "bottom",
padding: 5,
spacing: 2,
font: {
color: 0x000000, family: "Arial", size: 12
},
border: {
size: 1, color: 0x999999
}
}
}
}
});

//alert(3);
charwin.show();

[/code]