定制:组合框模板(Customizing: ComboBox Templates)

Posted 周四, 06/19/2008 - 13:49 by admin


演示(demo)地址在文章最后.

效果图如下:

主要文件forum-search.html,forum-search.js。

forum-search.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <title>ComboBox - Live Search</title>
    <link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />

    <!-- GC -->
 	<!-- LIBS -->
 	<script type="text/javascript" src="../../adapter/ext/ext-base.js"></script>
 	<!-- ENDLIBS -->

    <script type="text/javascript" src="../../ext-all.js"></script>

    <script type="text/javascript" src="forum-search.js"></script>
    <link rel="stylesheet" type="text/css" href="combos.css" />

    <!-- Common Styles for the examples -->
    <link rel="stylesheet" type="text/css" href="../examples.css" />
    <style type="text/css">
        p { width:650px; }
    </style>
</head>
<body>
<script type="text/javascript" src="../examples.js"></script><!-- EXAMPLES -->
<p>
    <b>Combo with Templates and Ajax</b><br />
    This is a more advanced example that shows how you can combine paging, Ext.Template and a remote data store
    to create a "live search" feature.
</p>
<p>The js is not minified so it is readable. See <a href="forum-search.js">forum-search.js</a>.</p>

<!-- The box wrap markup embedded instead of using Element.boxWrap() -->
<div style="width:600px;">
    <div class="x-box-tl"><div class="x-box-tr"><div class="x-box-tc"></div></div></div>
    <div class="x-box-ml"><div class="x-box-mr"><div class="x-box-mc">
        <h3 style="margin-bottom:5px;">Search the Ext Forums</h3>
        <input type="text" size="40" name="search" id="search" />
        <div style="padding-top:4px;">
            Live search requires a minimum of 4 characters.
        </div>
    </div></div></div>
    <div class="x-box-bl"><div class="x-box-br"><div class="x-box-bc"></div></div></div>
</div>
        
</body>
</html>

forum-search.js

/*
 * Ext JS Library 2.0.2
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * licensing＠extjs.com
 * 
 * extjs.com/license
 */

Ext.onReady(function(){

    var ds = new Ext.data.Store({
        proxy: new Ext.data.ScriptTagProxy({
            url: 'http://extjs.com/forum/topics-remote.php'
        }),
        reader: new Ext.data.JsonReader({
            root: 'topics',
            totalProperty: 'totalCount',
            id: 'post_id'
        }, [
            {name: 'title', mapping: 'topic_title'},
            {name: 'topicId', mapping: 'topic_id'},
            {name: 'author', mapping: 'author'},
            {name: 'lastPost', mapping: 'post_time', type: 'date', dateFormat: 'timestamp'},
            {name: 'excerpt', mapping: 'post_text'}
        ])
    });

    // Custom rendering Template
    var resultTpl = new Ext.XTemplate(
        '<tpl for="."><div class="search-item">',
            '<h3><span>{lastPost:date("M j, Y")}<br />by {author}</span>{title}</h3>',
            '{excerpt}',
        '</div></tpl>'
    );
    
    var search = new Ext.form.ComboBox({
        store: ds,
        displayField:'title',
        typeAhead: false,
        loadingText: 'Searching...',
        width: 570,
        pageSize:10,
        hideTrigger:true,
        tpl: resultTpl,
        applyTo: 'search',
        itemSelector: 'div.search-item',
        onSelect: function(record){ // override default onSelect to do redirect
            window.location =
                String.format('http://extjs.com/forum/showthread.php?t={0}&p={1}', record.data.topicId, record.id);
        }
    });
});

演示地址:http://extjs.org.cn/extjs/examples/form/forum-search.html

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