【发布时间】:2015-12-31 11:52:31
【问题描述】:
如何将label 动态添加到 jQuery UI 自定义自动完成中的现有类别?我已经自定义了autocomplete,比如described here (jQuery UI docs for autocomplete):
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI Autocomplete - Categories</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="/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, {
_create: function() {
this._super();
this.widget().menu( "option", "items", "> :not(.ui-autocomplete-category)" );
},
_renderMenu: function( ul, items ) {
var that = this,
currentCategory = "";
$.each( items, function( index, item ) {
var li;
if ( item.category != currentCategory ) {
ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
currentCategory = item.category;
}
li = that._renderItemData( ul, item );
if ( item.category ) {
li.attr( "aria-label", item.category + " : " + item.label );
}
});
}
});
</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">Search: </label>
<input id="search">
</body>
</html>
上面的代码创建了一个自动完成小部件。但是在某个时间点,我需要使用label 和category 添加新选项,例如,当我的数据库更新为某个值时。如何修改现有自定义自动完成小部件的可用选项列表?
【问题讨论】:
-
添加标签是什么?你能多解释一下你在做什么,你是怎么做的,会发生什么,以及你需要发生什么吗?目前这是一个质量非常低的问题。请改进它。
标签: jquery jquery-ui autocomplete jquery-widgets jquery-widget-factory