我正在使用EXTJS 4.1。我已经创建了一个EXTJS 4.1锁定网格。现在我想实现当用户点击下载按钮时以PDF格式下载网格的功能（可能是表格的形式）。如何将ext js网格导出为PDF？< / p>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title id='title'>HTML Page setup Tutorial</title>
<link rel="stylesheet" type="text/css" href="ext-all.css" />
<script type="text/javascript" src="ext-all.js"></script>
<script type="text/javascript">
Ext.onReady(function() {
Ext.QuickTips.init()
// sample static data for the store
var myData = [
['3m Co', 71.72, 0.02, 0.03, '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']
];
/**
* Custom function used for column renderer
* @param {Object} val
*/
function change(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '</span>';
}
return val;
}
/**
* Custom function used for column renderer
* @param {Object} val
*/
function pctChange(val) {
if (val > 0) {
return '<span style="color:green;">' + val + '%</span>';
} else if (val < 0) {
return '<span style="color:red;">' + val + '%</span>';
}
return val;
}
// create the data store
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'}
],
data: myData
});
// create the Grid
var grid1 = Ext.create('Ext.grid.Panel', {
renderTo: Ext.getBody(),
store: store,
width:0.3*Ext.getBody().getViewSize().width,
height: 0.5*Ext.getBody().getViewSize().height,
columnLines: true,
columns: [{
text : 'Company',
locked : true,
sortable : false,
dataIndex: 'company',
renderer : function (value, metaData, record, row, col, store, gridView) {
metaData.tdAttr = 'data-qtip="' + value + '"';
return value;
}
},{
text : 'Price',
width : 125,
locked:true,
sortable : true,
renderer : 'usMoney',
dataIndex: 'price',
},{
text : 'Change',
width : 555,
sortable : true,
dataIndex: 'change',
renderer : function (value, metaData, record, row, col, store, gridView) {
metaData.tdAttr = 'data-qtip="' + value + '"';
return value;
}
},{
text : '% Change',
width : 555,
sortable : true,
renderer : pctChange,
dataIndex: 'pctChange',
},{
text : 'Last Updated',
width : 555,
sortable : true,
renderer : Ext.util.Format.dateRenderer('m/d/Y'),
dataIndex: 'lastChange'
}],
title: 'Locking Grid Column',
selType: 'cellmodel',
selModel: Ext.create('MyApp.MultiCellSelectionModel',{
mode: 'MULTI',
allowDeselect: true
}),
multiSelect: true,
listeners : {
cellclick( grid, cell, columnIndex, record , node , rowIndex , evt){
var cellId = grid.getHeaderCt().getHeaderAtIndex(columnIndex).id;
var dataIndex = grid.getHeaderCt().getHeaderAtIndex(columnIndex).dataIndex;
var text = grid.getHeaderCt().getHeaderAtIndex(columnIndex).text;
alert(dataIndex);
alert(text);
}
}
});
});
</script>
</head>
<body>
</body>
</html>