基本组合框(Basic ComboBox)

Posted 周四, 06/19/2008 - 13:46 by admin

演示(demo)地址在文章最后.

效果图如下:

主要文件combos.html,combos.js,combos.css。

combos.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>Combo Boxes</title>
    <link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />
    <link rel="stylesheet" type="text/css" href="../../resources/css/xtheme-gray.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="states.js"></script>
    <script type="text/javascript" src="combos.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 -->
<h1>Combo Boxes</h1>
<p>The js is not minified so it is readable. See <a href="combos.js">combos.js</a>.</p>

<p>
<b>Data Sources</b><br />
The combo box can use any type of Ext.data.Store as it's data source.
    This means your data can be XML, JSON, arrays or any other supported format. It can be loaded using Ajax, script tags or be local.
    This combo uses local data from a JS array:<p>
<div>
    <input type="text" id="local-states" size="20"/>
</div>
<div id="state-combo-code-panel" style="margin-top:10px">
<pre id="state-combo-code" class="code"><code>// simple array store
var store = new Ext.data.SimpleStore({
    fields: ['abbr', 'state'],
    data : exampleData
});
var combo = new Ext.form.ComboBox({
    store: store,
    displayField:'state',
    typeAhead: true,
    mode: 'local',
    triggerAction: 'all',
    emptyText:'Select a state...',
    selectOnFocus:true,
    applyTo: 'local-states'
});
</code></pre></div>
<br />
</p>
<p>
	The combo below uses the same data, but also illustrates how to use an optional
	custom template to create custom UI renditions for list items. In this case,
	each item has a popup QuickTip which displays the state's nickname when hovered over.
</p>
<div>
    <input type="text" id="local-states-with-qtip" size="20"/>
</div>
<div id="state-combo-qtip-code-panel" style="margin-top:10px">
<pre id="state-combo-qtip-code" class="code"><code>// simple array store
var store = new Ext.data.SimpleStore({
    fields: ['abbr', 'state', 'nick'],
    data : exampleData
});
var comboWithTooltip = new Ext.form.ComboBox({
    tpl: '<tpl for="."><div ext:qtip="{state}. {nick}" class="x-combo-list-item">{state}</div></tpl>',
    store: store,
    displayField:'state',
    typeAhead: true,
    mode: 'local',
    triggerAction: 'all',
    emptyText:'Select a state...',
    selectOnFocus:true,
    applyTo: 'local-states-with-qtip'
});
</code></pre></div>
<br />
<p>
<b>Unobtrusive</b><br />
The combo box can very easily be used to convert existing select elements into auto-completing, filtering combos.
</p>
<div>
Transformed select:<br/> <select name="state" id="state">
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH" selected>Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</div><br />
<p>
Originally looked like:<br/> <select name="state-orig">
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH" selected>Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</p>
<div id="transformed-combo-code-panel" style="margin-top:10px">
<pre id="transformed-combo-code" class="code"><code>var converted = new Ext.form.ComboBox({
    typeAhead: true,
    triggerAction: 'all',
    transform:'state',
    width:135,
    forceSelection:true
});
</code></pre></div>
<br />
<p>
    <b>Grid Editor</b><br />
    <a href="../grid/edit-grid.html">Click here</a> to see the combo as a grid editor.
</p>
<br />
<p>
    <b>Templates and Ajax</b><br />
    <a href="forum-search.html">Click here</a> for a more advanced example.
</p>
<br /><br /><br /><br />
</body>
</html>

combos.js

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

Ext.onReady(function(){
    Ext.QuickTips.init();

    // simple array store
    var store = new Ext.data.SimpleStore({
        fields: ['abbr', 'state', 'nick'],
        data : Ext.exampledata.states // from states.js
    });
    var combo = new Ext.form.ComboBox({
        store: store,
        displayField:'state',
        typeAhead: true,
        mode: 'local',
        triggerAction: 'all',
        emptyText:'Select a state...',
        selectOnFocus:true,
        applyTo: 'local-states'
    });

    var comboWithTooltip = new Ext.form.ComboBox({
        tpl: '<tpl for="."><div ext:qtip="{state}. {nick}" class="x-combo-list-item">{state}</div></tpl>',
        store: store,
        displayField:'state',
        typeAhead: true,
        mode: 'local',
        triggerAction: 'all',
        emptyText:'Select a state...',
        selectOnFocus:true,
        applyTo: 'local-states-with-qtip'
    });

    var converted = new Ext.form.ComboBox({
        typeAhead: true,
        triggerAction: 'all',
        transform:'state',
        width:135,
        forceSelection:true
    });
    
//  Create code view Panels. Ignore.
    new Ext.Panel({
    	contentEl: 'state-combo-code',
    	width: Ext.getBody().child('p').getWidth(),
    	title: 'View code to create this combo',
    	hideCollapseTool: true,
    	titleCollapse: true,
    	collapsible: true,
    	collapsed: true,
    	renderTo: 'state-combo-code-panel'
    });
    new Ext.Panel({
    	contentEl: 'state-combo-qtip-code',
    	autoScroll: true,
    	width: Ext.getBody().child('p').getWidth(),
    	title: 'View code to create this combo',
    	hideCollapseTool: true,
    	titleCollapse: true,
    	collapsible: true,
    	collapsed: true,
    	renderTo: 'state-combo-qtip-code-panel'
    });
    new Ext.Panel({
    	contentEl: 'transformed-combo-code',
    	autoScroll: true,
    	width: Ext.getBody().child('p').getWidth(),
    	title: 'View code to create this combo',
    	hideCollapseTool: true,
    	titleCollapse: true,
    	collapsible: true,
    	collapsed: true,
    	renderTo: 'transformed-combo-code-panel'
    });

});

combos.css

/*
 * Ext JS Library 2.0.2
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * licensing＠extjs.com
 * 
 * extjs.com/license
 */
body {
	font-family:verdana,tahoma,helvetica;
	padding:20px;
    padding-top:32px;
    font-size:13px;
	background-color:#fff !important;
}
p {
	margin-bottom:15px;
}
h1 {
	font-size:large;
	margin-bottom:20px;
}
h2 {
	font-size:14px;
    color:#333;
    font-weight:bold;
    margin:10px 0;
}

.search-item {
    font:normal 11px tahoma, arial, helvetica, sans-serif;
    padding:3px 10px 3px 10px;
    border:1px solid #fff;
    border-bottom:1px solid #eeeeee;
    white-space:normal;
    color:#555;
}
.search-item h3 {
    display:block;
    font:inherit;
    font-weight:bold;
    color:#222;
}

.search-item h3 span {
    float: right;
    font-weight:normal;
    margin:0 0 5px 5px;
    width:100px;
    display:block;
    clear:none;
}

演示地址:http://extjs.org.cn/extjs/examples/form/combos.html

关键字:
- 组合框(ComboBox)

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

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