ExtJs之Ext.form.field.ComboBox组合框

<!DOCTYPE html>
<html>
<head>
    <title>ExtJs</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <link rel="stylesheet" type="text/css" href="ExtJs/packages/ext-theme-crisp/build/resources/ext-theme-crisp-all.css">
        <script type="text/javascript" src="ExtJs/ext-all.js"></script>
        <script type="text/javascript" src="ExtJs/bootstrap.js"></script>
        <script type="text/javascript" src="ExtJs/packages/ext-theme-crisp/build/ext-theme-crisp.js"></script>

    <script type="text/javascript">
            Ext.onReady(function() {
                /*
                Ext.regModel('PostInfo', {
                    fields: [{name: 'province'}, {name: 'post'}]
                });
                var postStore = Ext.create('Ext.data.Store', {
                    model: 'PostInfo',
                    data: [
                        {province: 'BeiJing', post: '10000'},
                        {province: 'TongXian', post: '10001'},
                        {province: 'Changping', post: '10002'},
                        {province: 'DangXing', post: '10003'},
                        {province: 'Bg', post: '10004'},
                        {province: 'Yangqing', post: '10500'},
                        {province: 'Sunyi', post: '10006'},
                        {province: 'HuaiRou', post: '10007'}
                    ]
                });
                */
                Ext.define('PostInfo', {
                    extend: 'Ext.data.Model',
                    fields: [{name: 'province'}, {name: 'post'}]
                });
                var postStore = Ext.create('Ext.data.Store', {
                    'model': 'PostInfo',
                    'data': [
                        {province: 'BeiJing', post: '10000'},
                        {province: 'TongXian', post: '10001'},
                        {province: 'Changping', post: '10002'},
                        {province: 'DangXing', post: '10003'},
                        {province: 'Bg', post: '10004'},
                        {province: 'Yangqing', post: '10500'},
                        {province: 'Sunyi', post: '10006'},
                        {province: 'HuaiRou', post: '10007'}
                    ]
                });

                Ext.create('Ext.form.Panel', {
                    title: 'Ext.form.field.ComboBox.Sample',
                    renderTo: Ext.getBody(),
                    bodyPadding: 5,
                    frame: true,
                    height: 1000,
                    width: 870,
                    defaults: {
                        labelSeparator: ':',
                        labelWidth: 170,
                        width: 300,
                        labelAlign: 'left'
                    },
                    items: [{
                        xtype: 'combo',
                        listConfig: {
                            emptyText: 'none match',
                            maxHeight: 260
                        },
                        name: 'post',
                        fieldLabel: 'postcode',
                        triggerAction: 'all',
                        store: postStore,
                        displayField: 'province',
                        valueField: 'post',
                        queryMode: 'local',
                        forceSelection: true,
                        typeAhead: true,
                        value: '10002'
                    }]
                });
            });
    </script>
</head>
<body>
    <div id='form'></div>
        <div id='form1'></div>

</body>
</html>