JQuery easyui里面的自动完成autocomplete插件
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
>
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。包含重音
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
=
"http://geonames.org"
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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