Ext JS Ext.data.Store 从后台取数据问题
我的JS代码如下：
var store = Ext.create('Ext.data.ArrayStore', {
fields: [
{ name: 'company' },
{ name: 'price', type: 'float' },
{ name: 'change', type: 'float' },
{ name: 'pctChange', type: 'float' },
{ name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia' }],
proxy: new Ext.data.HttpProxy({
url: 'Default.aspx'
}),
reader: new Ext.data.ArrayReader({}, [
{ name: 'company' },
{ name: 'price', type: 'float' },
{ name: 'change', type: 'float' },
{ name: 'pctChange', type: 'float' },
{ name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}])
});
var grid = Ext.create('Ext.grid.Panel', {
store: store,
stateful: true,
stateId: 'stateGrid',
columns: [
{
text: 'Company',
flex: 1,
sortable: false,
dataIndex: 'company'
},
{
text: 'Price',
width: 75,
sortable: true,
renderer: 'usMoney',
dataIndex: 'price'
},
{
text: 'Change',
width: 75,
sortable: true,
renderer: change,
dataIndex: 'change'
},
{
text: '% Change',
width: 75,
sortable: true,
renderer: pctChange,
dataIndex: 'pctChange'
},
{
text: 'Last Updated',
width: 85,
sortable: true,
renderer: Ext.util.Format.dateRenderer('m/d/Y'),
dataIndex: 'lastChange'
},
{
xtype: 'actioncolumn',
width: 50,
items: [{
icon: '../shared/icons/fam/delete.gif', // Use a URL in the icon config
tooltip: 'Sell stock',
handler: function (grid, rowIndex, colIndex) {
var rec = store.getAt(rowIndex);
alert("Sell " + rec.get('company'));
}
}, {
getClass: function (v, meta, rec) { // Or return a class from a function
if (rec.get('change') < 0) {
this.items[1].tooltip = 'Hold stock';
return 'alert-col';
} else {
this.items[1].tooltip = 'Buy stock';
return 'buy-col';
}
},
handler: function (grid, rowIndex, colIndex) {
var rec = store.getAt(rowIndex);
alert((rec.get('change') < 0 ? "Hold " : "Buy ") + rec.get('company'));
}
}]
}
],
height: 350,
width: 600,
title: 'Array Grid',
renderTo: 'grid-example',
viewConfig: {
stripeRows: true
}
});
});
Default.aspx 后台代码如下：
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
this.ProcessRequest();
}
}
public void ProcessRequest()
{// 'post_id', 'topic_title', 'author'
//string str = @"{'totalCount':[{'post_id:'604220','topic_title':'Status bar error with IFrames','author':'Daz'}]}";
string strResult = @"[['3m Co' , 71.72, 0.02, 0.03, '9/1 12:00am'],
['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'],
['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'],
['Altria Group Inc', 83.81, 0.28, 0.34, '9/1 12:00am'],
['American Express Company', 52.55, 0.01, 0.02, '9/1 12:00am'],
['American International Group, Inc.', 64.13, 0.31, 0.49, '9/1 12:00am'],
['AT&T Inc.', 31.61, -0.48, -1.54, '9/1 12:00am'],
['Boeing Co.', 75.43, 0.53, 0.71, '9/1 12:00am'],
['Caterpillar Inc.', 67.27, 0.92, 1.39, '9/1 12:00am'],
['Citigroup, Inc.', 49.37, 0.02, 0.04, '9/1 12:00am'],
['E.I. du Pont de Nemours and Company', 40.48, 0.51, 1.28, '9/1 12:00am'],
['Exxon Mobil Corp', 68.1, -0.43, -0.64, '9/1 12:00am'],
['General Electric Company', 34.14, -0.08, -0.23, '9/1 12:00am'],
['General Motors Corporation', 30.27, 1.09, 3.74, '9/1 12:00am'],
['Hewlett-Packard Co.', 36.53, -0.03, -0.08, '9/1 12:00am'],
['Honeywell Intl Inc', 38.77, 0.05, 0.13, '9/1 12:00am'],
['Intel Corporation', 19.88, 0.31, 1.58, '9/1 12:00am'],
['International Business Machines', 81.41, 0.44, 0.54, '9/1 12:00am'],
['Johnson & Johnson', 64.72, 0.06, 0.09, '9/1 12:00am'],
['JP Morgan & Chase & Co', 45.73, 0.07, 0.15, '9/1 12:00am'],
['McDonald\'s Corporation', 36.76, 0.86, 2.40, '9/1 12:00am'],
['Merck & Co., Inc.', 40.96, 0.41, 1.01, '9/1 12:00am'],
['Microsoft Corporation', 25.84, 0.14, 0.54, '9/1 12:00am'],
['Pfizer Inc', 27.96, 0.4, 1.45, '9/1 12:00am'],
['The Coca-Cola Company', 45.07, 0.26, 0.58, '9/1 12:00am'],
['The Home Depot, Inc.', 34.64, 0.35, 1.02, '9/1 12:00am'],
['The Procter & Gamble Company', 61.91, 0.01, 0.02, '9/1 12:00am'],
['United Technologies Corporation', 63.26, 0.55, 0.88, '9/1 12:00am'],
['Verizon Communications', 35.57, 0.39, 1.11, '9/1 12:00am'],
['Wal-Mart Stores, Inc.', 45.45, 0.73, 1.63, '9/1 12:00am']]";
HttpContext.Current.Response.Write(strResult);
HttpContext.Current.Response.End();
}
请求default.aspx返回的数据如下：
[['3m Co' , 71.72, 0.02, 0.03, '9/1 12:00am'], ['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'], ['Alcoa Inc', 29.01, 0.42, 1.47, '9/1 12:00am'], ['Altria Group Inc', 83.81, 0.28, 0.34, '9/1 12:00am'], ['American Express Company', 52.55, 0.01, 0.02, '9/1 12:00am'], ['American International Group, Inc.', 64.13, 0.31, 0.49, '9/1 12:00am'], ['AT&T Inc.', 31.61, -0.48, -1.54, '9/1 12:00am'], ['Boeing Co.', 75.43, 0.53, 0.71, '9/1 12:00am'], ['Caterpillar Inc.', 67.27, 0.92, 1.39, '9/1 12:00am'], ['Citigroup, Inc.', 49.37, 0.02, 0.04, '9/1 12:00am'], ['E.I. du Pont de Nemours and Company', 40.48, 0.51, 1.28, '9/1 12:00am'], ['Exxon Mobil Corp', 68.1, -0.43, -0.64, '9/1 12:00am'], ['General Electric Company', 34.14, -0.08, -0.23, '9/1 12:00am'], ['General Motors Corporation', 30.27, 1.09, 3.74, '9/1 12:00am'], ['Hewlett-Packard Co.', 36.53, -0.03, -0.08, '9/1 12:00am'], ['Honeywell Intl Inc', 38.77, 0.05, 0.13, '9/1 12:00am'], ['Intel Corporation', 19.88, 0.31, 1.58, '9/1 12:00am'], ['International Business Machines', 81.41, 0.44, 0.54, '9/1 12:00am'], ['Johnson & Johnson', 64.72, 0.06, 0.09, '9/1 12:00am'], ['JP Morgan & Chase & Co', 45.73, 0.07, 0.15, '9/1 12:00am'], ['McDonald\'s Corporation', 36.76, 0.86, 2.40, '9/1 12:00am'], ['Merck & Co., Inc.', 40.96, 0.41, 1.01, '9/1 12:00am'], ['Microsoft Corporation', 25.84, 0.14, 0.54, '9/1 12:00am'], ['Pfizer Inc', 27.96, 0.4, 1.45, '9/1 12:00am'], ['The Coca-Cola Company', 45.07, 0.26, 0.58, '9/1 12:00am'], ['The Home Depot, Inc.', 34.64, 0.35, 1.02, '9/1 12:00am'], ['The Procter & Gamble Company', 61.91, 0.01, 0.02, '9/1 12:00am'], ['United Technologies Corporation', 63.26, 0.55, 0.88, '9/1 12:00am'], ['Verizon Communications', 35.57, 0.39, 1.11, '9/1 12:00am'], ['Wal-Mart Stores, Inc.', 45.45, 0.73, 1.63, '9/1 12:00am']]
问题：
1、表格可以正常显示，但没有数据。
小弟刚接触这个框架，请各位大侠多多指教，小弟万分感谢。
EXT?asp.net ext
[解决办法]
js加上 store.reload({params: {start: 0, limit:30}}); 试试看
[解决办法]
var store = Ext.create('Ext.data.ArrayStore', {
fields: [{ name: 'company' },
{ name: 'price', type: 'float' },
{ name: 'change', type: 'float' },
{ name: 'pctChange', type: 'float' },
{ name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}],
proxy: {type:'ajax',
url: 'Default.aspx',
reader:'array'
},
autoLoad:true
});
