根据用户输入值进行搜索和过滤,让用户快速找到并从预设值列表中选择。
如需了解更多有关 autocomplete 部件的细节,请查看 API 文档 自动完成部件(Autocomplete Widget)。
本章节使用到 search.php 下载。
默认功能
当您在输入域中输入时,自动完成(Autocomplete)部件提供相应的建议。在本实例中,提供了编程语言的建议选项,您可以输入 "ja" 尝试一下,可以得到 Java 或 JavaScript。
数据源是一个简单的 JavaScript 数组,使用 source 选项提供给部件。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 默认功能</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <script>
- $(function() {
- var availableTags = [
- "ActionScript",
- "AppleScript",
- "Asp",
- "BASIC",
- "C",
- "C++",
- "Clojure",
- "COBOL",
- "ColdFusion",
- "Erlang",
- "Fortran",
- "Groovy",
- "Haskell",
- "Java",
- "JavaScript",
- "Lisp",
- "Perl",
- "PHP",
- "Python",
- "Ruby",
- "Scala",
- "Scheme"
- ];
- $( "#tags" ).autocomplete({
- source: availableTags
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="tags">标签:</label>
- <input id="tags">
- </div>
- </body>
- </html>
包含重音
autocomplete 域使用自定义的 source 选项来匹配带有重音字符的结果项,即使文本域不包含重音字符也会匹配。但是如果您在文本域中键入了重音字符,则不会显示非重音的结果项。
尝试键入 "Jo",会看到 "John" 和 "Jörn",然后 键入 "Jö",只会看到 "Jörn"。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 包含重音</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <script>
- $(function() {
- var names = [ "Jörn Zaefferer", "Scott González", "John Resig" ];
- var accentMap = {
- "á": "a",
- "ö": "o"
- };
- var normalize = function( term ) {
- var ret = "";
- for ( var i = 0; i < term.length; i++ ) {
- ret += accentMap[ term.charAt(i) ] || term.charAt(i);
- }
- return ret;
- };
- $( "#developer" ).autocomplete({
- source: function( request, response ) {
- var matcher = new RegExp( $.ui.autocomplete.escapeRegex( request.term ), "i" );
- response( $.grep( names, function( value ) {
- value = value.label || value.value || value;
- return matcher.test( value ) || matcher.test( normalize( value ) );
- }) );
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <form>
- <label for="developer">开发人员:</label>
- <input id="developer">
- </form>
- </div>
- </body>
- </html>
分类
分类的搜索结果。尝试键入 "a" 或 "n"。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 分类</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-category {
- font-weight: bold;
- padding: .2em .4em;
- margin: .8em 0 .2em;
- line-height: 1.5;
- }
- </style>
- <script>
- $.widget( "custom.catcomplete", $.ui.autocomplete, {
- _renderMenu: function( ul, items ) {
- var that = this,
- currentCategory = "";
- $.each( items, function( index, item ) {
- if ( item.category != currentCategory ) {
- ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
- currentCategory = item.category;
- }
- that._renderItemData( ul, item );
- });
- }
- });
- </script>
- <script>
- $(function() {
- var data = [
- { label: "anders", category: "" },
- { label: "andreas", category: "" },
- { label: "antal", category: "" },
- { label: "annhhx10", category: "Products" },
- { label: "annk K12", category: "Products" },
- { label: "annttop C13", category: "Products" },
- { label: "anders andersson", category: "People" },
- { label: "andreas andersson", category: "People" },
- { label: "andreas johnson", category: "People" }
- ];
- $( "#search" ).catcomplete({
- delay: 0,
- source: data
- });
- });
- </script>
- </head>
- <body>
- <label for="search">搜索:</label>
- <input id="search">
- </body>
- </html>
组合框(Combobox)
一个由 Autocomplete 和 Button 创建的自定义部件。您可以键入一些字符,来获得基于您的输入过滤的结果,或者使用按钮从完整列表中选择。
该输入是从一个已有的 select 元素中读取,传递给带有自定义的 source 选项的 Autocomplete。
这是一个不被支持的不完美的部件。这里纯粹是为了演示 autocomplete 定制功能。如需了解更多有关该部件工作原理的细节,请点击这里查看相关的 jQuery 文章。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 组合框(Combobox)</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .custom-combobox {
- position: relative;
- display: inline-block;
- }
- .custom-combobox-toggle {
- position: absolute;
- top: 0;
- bottom: 0;
- margin-left: -1px;
- padding: 0;
- /* 支持: IE7 */
- *height: 1.7em;
- *top: 0.1em;
- }
- .custom-combobox-input {
- margin: 0;
- padding: 0.3em;
- }
- </style>
- <script>
- (function( $ ) {
- $.widget( "custom.combobox", {
- _create: function() {
- this.wrapper = $( "<span>" )
- .addClass( "custom-combobox" )
- .insertAfter( this.element );
- this.element.hide();
- this._createAutocomplete();
- this._createShowAllButton();
- },
- _createAutocomplete: function() {
- var selected = this.element.children( ":selected" ),
- value = selected.val() ? selected.text() : "";
- this.input = $( "<input>" )
- .appendTo( this.wrapper )
- .val( value )
- .attr( "title", "" )
- .addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" )
- .autocomplete({
- delay: 0,
- minLength: 0,
- source: $.proxy( this, "_source" )
- })
- .tooltip({
- tooltipClass: "ui-state-highlight"
- });
- this._on( this.input, {
- autocompleteselect: function( event, ui ) {
- ui.item.option.selected = true;
- this._trigger( "select", event, {
- item: ui.item.option
- });
- },
- autocompletechange: "_removeIfInvalid"
- });
- },
- _createShowAllButton: function() {
- var input = this.input,
- wasOpen = false;
- $( "<a>" )
- .attr( "tabIndex", -1 )
- .attr( "title", "Show All Items" )
- .tooltip()
- .appendTo( this.wrapper )
- .button({
- icons: {
- primary: "ui-icon-triangle-1-s"
- },
- text: false
- })
- .removeClass( "ui-corner-all" )
- .addClass( "custom-combobox-toggle ui-corner-right" )
- .mousedown(function() {
- wasOpen = input.autocomplete( "widget" ).is( ":visible" );
- })
- .click(function() {
- input.focus();
- // 如果已经可见则关闭
- if ( wasOpen ) {
- return;
- }
- // 传递空字符串作为搜索的值,显示所有的结果
- input.autocomplete( "search", "" );
- });
- },
- _source: function( request, response ) {
- var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
- response( this.element.children( "option" ).map(function() {
- var text = $( this ).text();
- if ( this.value && ( !request.term || matcher.test(text) ) )
- return {
- label: text,
- value: text,
- option: this
- };
- }) );
- },
- _removeIfInvalid: function( event, ui ) {
- // 选择一项,不执行其他动作
- if ( ui.item ) {
- return;
- }
- // 搜索一个匹配(不区分大小写)
- var value = this.input.val(),
- valueLowerCase = value.toLowerCase(),
- valid = false;
- this.element.children( "option" ).each(function() {
- if ( $( this ).text().toLowerCase() === valueLowerCase ) {
- this.selected = valid = true;
- return false;
- }
- });
- // 找到一个匹配,不执行其他动作
- if ( valid ) {
- return;
- }
- // 移除无效的值
- this.input
- .val( "" )
- .attr( "title", value + " didn't match any item" )
- .tooltip( "open" );
- this.element.val( "" );
- this._delay(function() {
- this.input.tooltip( "close" ).attr( "title", "" );
- }, 2500 );
- this.input.data( "ui-autocomplete" ).term = "";
- },
- _destroy: function() {
- this.wrapper.remove();
- this.element.show();
- }
- });
- })( jQuery );
- $(function() {
- $( "#combobox" ).combobox();
- $( "#toggle" ).click(function() {
- $( "#combobox" ).toggle();
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label>您喜欢的编程语言:</label>
- <select id="combobox">
- <option value="">请选择...</option>
- <option value="ActionScript">ActionScript</option>
- <option value="AppleScript">AppleScript</option>
- <option value="Asp">Asp</option>
- <option value="BASIC">BASIC</option>
- <option value="C">C</option>
- <option value="C++">C++</option>
- <option value="Clojure">Clojure</option>
- <option value="COBOL">COBOL</option>
- <option value="ColdFusion">ColdFusion</option>
- <option value="Erlang">Erlang</option>
- <option value="Fortran">Fortran</option>
- <option value="Groovy">Groovy</option>
- <option value="Haskell">Haskell</option>
- <option value="Java">Java</option>
- <option value="JavaScript">JavaScript</option>
- <option value="Lisp">Lisp</option>
- <option value="Perl">Perl</option>
- <option value="PHP">PHP</option>
- <option value="Python">Python</option>
- <option value="Ruby">Ruby</option>
- <option value="Scala">Scala</option>
- <option value="Scheme">Scheme</option>
- </select>
- </div>
- <button id="toggle">显示基础的选择框</button>
- </body>
- </html>
自定义数据并显示
您可以使用自定义数据格式,并通过简单地重载默认的聚焦和选择行为来显示数据。
尝试键入 "j",或者按向下箭头按键,即可得到一个项目列表。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 自定义数据并显示</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- #project-label {
- display: block;
- font-weight: bold;
- margin-bottom: 1em;
- }
- #project-icon {
- float: left;
- height: 32px;
- width: 32px;
- }
- #project-description {
- margin: 0;
- padding: 0;
- }
- </style>
- <script>
- $(function() {
- var projects = [
- {
- value: "jquery",
- label: "jQuery",
- desc: "the write less, do more, JavaScript library",
- icon: "jquery_32x32.png"
- },
- {
- value: "jquery-ui",
- label: "jQuery UI",
- desc: "the official user interface library for jQuery",
- icon: "jqueryui_32x32.png"
- },
- {
- value: "sizzlejs",
- label: "Sizzle JS",
- desc: "a pure-JavaScript CSS selector engine",
- icon: "sizzlejs_32x32.png"
- }
- ];
- $( "#project" ).autocomplete({
- minLength: 0,
- source: projects,
- focus: function( event, ui ) {
- $( "#project" ).val( ui.item.label );
- return false;
- },
- select: function( event, ui ) {
- $( "#project" ).val( ui.item.label );
- $( "#project-id" ).val( ui.item.value );
- $( "#project-description" ).html( ui.item.desc );
- $( "#project-icon" ).attr( "src", "images/" + ui.item.icon );
- return false;
- }
- })
- .data( "ui-autocomplete" )._renderItem = function( ul, item ) {
- return $( "<li>" )
- .append( "<a>" + item.label + "<br>" + item.desc + "</a>" )
- .appendTo( ul );
- };
- });
- </script>
- </head>
- <body>
- <div id="project-label">选择一个项目(请键入 "j"):</div>
- <img id="project-icon" src="images/transparent_1x1.png" class="ui-state-default" alt="">
- <input id="project">
- <input type="hidden" id="project-id">
- <p id="project-description"></p>
- </body>
- </html>
多个值
用法:键入一些字符,比如 "j",可以看到相关的编程语言结果。选择一个值,然后继续键入字符来添加其他的值。
本实例演示如何使用 source 选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 多个值</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <script>
- $(function() {
- var availableTags = [
- "ActionScript",
- "AppleScript",
- "Asp",
- "BASIC",
- "C",
- "C++",
- "Clojure",
- "COBOL",
- "ColdFusion",
- "Erlang",
- "Fortran",
- "Groovy",
- "Haskell",
- "Java",
- "JavaScript",
- "Lisp",
- "Perl",
- "PHP",
- "Python",
- "Ruby",
- "Scala",
- "Scheme"
- ];
- function split( val ) {
- return val.split( /,\s*/ );
- }
- function extractLast( term ) {
- return split( term ).pop();
- }
- $( "#tags" )
- // 当选择一个条目时不离开文本域
- .bind( "keydown", function( event ) {
- if ( event.keyCode === $.ui.keyCode.TAB &&
- $( this ).data( "ui-autocomplete" ).menu.active ) {
- event.preventDefault();
- }
- })
- .autocomplete({
- minLength: 0,
- source: function( request, response ) {
- // 回到 autocomplete,但是提取最后的条目
- response( $.ui.autocomplete.filter(
- availableTags, extractLast( request.term ) ) );
- },
- focus: function() {
- // 防止在获得焦点时插入值
- return false;
- },
- select: function( event, ui ) {
- var terms = split( this.value );
- // 移除当前输入
- terms.pop();
- // 添加被选项
- terms.push( ui.item.value );
- // 添加占位符,在结尾添加逗号+空格
- terms.push( "" );
- this.value = terms.join( ", " );
- return false;
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="tags">编程语言:</label>
- <input id="tags" size="50">
- </div>
- </body>
- </html>
多个值,远程
用法:键入至少两个字符来获取鸟的名称。选择一个值,然后继续键入字符来添加其他的值。
本实例演示如何使用 source 选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 多个值,远程</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-loading {
- background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
- }
- </style>
- <script>
- $(function() {
- function split( val ) {
- return val.split( /,\s*/ );
- }
- function extractLast( term ) {
- return split( term ).pop();
- }
- $( "#birds" )
- // 当选择一个条目时不离开文本域
- .bind( "keydown", function( event ) {
- if ( event.keyCode === $.ui.keyCode.TAB &&
- $( this ).data( "ui-autocomplete" ).menu.active ) {
- event.preventDefault();
- }
- })
- .autocomplete({
- source: function( request, response ) {
- $.getJSON( "search.php", {
- term: extractLast( request.term )
- }, response );
- },
- search: function() {
- // 自定义最小长度
- var term = extractLast( this.value );
- if ( term.length < 2 ) {
- return false;
- }
- },
- focus: function() {
- // 防止在获得焦点时插入值
- return false;
- },
- select: function( event, ui ) {
- var terms = split( this.value );
- // 移除当前输入
- terms.pop();
- // 添加被选项
- terms.push( ui.item.value );
- // 添加占位符,在结尾添加逗号+空格
- terms.push( "" );
- this.value = terms.join( ", " );
- return false;
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="birds">鸟:</label>
- <input id="birds" size="50">
- </div>
- </body>
- </html>
远程 JSONP 数据源
当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关城市的名称。
在本实例中,数据源是 geonames.org webservice。虽然选择一个元素后文本域中是该城市名称,但是会显示更多的信息以便找到正确的条目。数据也可以回调,显示在下面的结果框中。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 远程 JSONP 数据源</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-loading {
- background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
- }
- #city { width: 25em; }
- </style>
- <script>
- $(function() {
- function log( message ) {
- $( "<div>" ).text( message ).prependTo( "#log" );
- $( "#log" ).scrollTop( 0 );
- }
- $( "#city" ).autocomplete({
- source: function( request, response ) {
- $.ajax({
- url: "http://ws.geonames.org/searchJSON",
- dataType: "jsonp",
- data: {
- featureClass: "P",
- style: "full",
- maxRows: 12,
- name_startsWith: request.term
- },
- success: function( data ) {
- response( $.map( data.geonames, function( item ) {
- return {
- label: item.name + (item.adminName1 ? ", " + item.adminName1 : "") + ", " + item.countryName,
- value: item.name
- }
- }));
- }
- });
- },
- minLength: 2,
- select: function( event, ui ) {
- log( ui.item ?
- "Selected: " + ui.item.label :
- "Nothing selected, input was " + this.value);
- },
- open: function() {
- $( this ).removeClass( "ui-corner-all" ).addClass( "ui-corner-top" );
- },
- close: function() {
- $( this ).removeClass( "ui-corner-top" ).addClass( "ui-corner-all" );
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="city">您的城市:</label>
- <input id="city">
- Powered by <a href="/redirect.aspx?id=68379ade-62c4-411d-b220-864fe4df6e27" target="_blank">geonames.org</a>
- </div>
- <div class="ui-widget" style="margin-top:2em; font-family:Arial">
- 结果:
- <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
- </div>
- </body>
- </html>
远程数据源
当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关鸟的名称。
在本实例中,数据源是可返回 JSON 数据的服务器端脚本,通过一个简单的 source 选项来指定。另外,minLength 选项设置为 2,避免查询返回太多的结果,select 事件用于显示一些反馈。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 远程数据源</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-loading {
- background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
- }
- </style>
- <script>
- $(function() {
- function log( message ) {
- $( "<div>" ).text( message ).prependTo( "#log" );
- $( "#log" ).scrollTop( 0 );
- }
- $( "#birds" ).autocomplete({
- source: "search.php",
- minLength: 2,
- select: function( event, ui ) {
- log( ui.item ?
- "Selected: " + ui.item.value + " aka " + ui.item.id :
- "Nothing selected, input was " + this.value );
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="birds">鸟:</label>
- <input id="birds">
- </div>
- <div class="ui-widget" style="margin-top:2em; font-family:Arial">
- 结果:
- <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
- </div>
- </body>
- </html>
远程缓存
当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关鸟的名称。
为了提高性能,这里添加了一些本地缓存,其他与远程数据源实例相似。在这里,缓存只保存了一个查询,并可以扩展到缓存多个值,每个条目一个值。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 远程缓存</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-loading {
- background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
- }
- </style>
- <script>
- $(function() {
- var cache = {};
- $( "#birds" ).autocomplete({
- minLength: 2,
- source: function( request, response ) {
- var term = request.term;
- if ( term in cache ) {
- response( cache[ term ] );
- return;
- }
- $.getJSON( "search.php", request, function( data, status, xhr ) {
- cache[ term ] = data;
- response( data );
- });
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="birds">鸟:</label>
- <input id="birds">
- </div>
- </body>
- </html>
可滚动的结果
当显示一个长列表的选项时,您可以简单地为 autocomplete 菜单设置 max-height 来防止菜单显示太长。尝试键入 "a" 或 "s" 来获得一个可滚动的长列表的结果。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - 可滚动的结果</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete {
- max-height: 100px;
- overflow-y: auto;
- /* 防止水平滚动条 */
- overflow-x: hidden;
- }
- /* IE 6 不支持 max-height
- * 我们使用 height 代替,但是这会强制菜单总是显示为那个高度
- */
- * html .ui-autocomplete {
- height: 100px;
- }
- </style>
- <script>
- $(function() {
- var availableTags = [
- "ActionScript",
- "AppleScript",
- "Asp",
- "BASIC",
- "C",
- "C++",
- "Clojure",
- "COBOL",
- "ColdFusion",
- "Erlang",
- "Fortran",
- "Groovy",
- "Haskell",
- "Java",
- "JavaScript",
- "Lisp",
- "Perl",
- "PHP",
- "Python",
- "Ruby",
- "Scala",
- "Scheme"
- ];
- $( "#tags" ).autocomplete({
- source: availableTags
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="tags">标签:</label>
- <input id="tags">
- </div>
- </body>
- </html>
XML 数据
本实例演示如何获取一些 XML 数据,并使用 jQuery 的方法解析它,然后把它提供给 autocomplete 作为数据源。
本实例也可作为解析远程 XML 数据源的参考 - 解析在每次 source 回调请求时发生。
- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>jQuery UI 自动完成(Autocomplete) - XML 数据</title>
- <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
- <script src="//code.jquery.com/jquery-1.9.1.js"></script>
- <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
- <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
- <style>
- .ui-autocomplete-loading { background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat; }
- </style>
- <script>
- $(function() {
- function log( message ) {
- $( "<div/>" ).text( message ).prependTo( "#log" );
- $( "#log" ).attr( "scrollTop", 0 );
- }
- $.ajax({
- url: "london.xml",
- dataType: "xml",
- success: function( xmlResponse ) {
- var data = $( "geoname", xmlResponse ).map(function() {
- return {
- value: $( "name", this ).text() + ", " +
- ( $.trim( $( "countryName", this ).text() ) || "(unknown country)" ),
- id: $( "geonameId", this ).text()
- };
- }).get();
- $( "#birds" ).autocomplete({
- source: data,
- minLength: 0,
- select: function( event, ui ) {
- log( ui.item ?
- "Selected: " + ui.item.value + ", geonameId: " + ui.item.id :
- "Nothing selected, input was " + this.value );
- }
- });
- }
- });
- });
- </script>
- </head>
- <body>
- <div class="ui-widget">
- <label for="birds">London 匹配:</label>
- <input id="birds">
- </div>
- <div class="ui-widget" style="margin-top:2em; font-family:Arial">
- 结果:
- <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
- </div>
- </body>
- </html>
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