jquery Autocomplete demo page类别显示以下内容:
我希望用户在单独的按钮(下拉列表)中选择类别(产品或人物),然后使用jquery搜索返回用户选择的类别中的匹配项。
预期结果:
我是jquery的新手,但根据我的研究,我认为可以使用"函数"作为输入,如答案中所述(即使问题不同):
Jquery UI Autocomplete: search from multiple attributes of one array
但是我不知道接下来该做什么。
我目前的代码是来自官方文档的代码:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQuery UI Autocomplete - Categories</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.0/themes/base/jquery-ui.css">
<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 src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.0/jquery-ui.js"></script>
<script>
$( function() {
$.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 );
}
});
}
});
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>
答案 0 :(得分:0)
使用示例数据,还需要做更多的工作来设置数据以便更好地工作。如果您可以控制数据格式,则可以事先做好准备,以便更好地工作。
工作示例:https://jsfiddle.net/Twisty/uy5f2fta/
<强> HTML 强>
<label>Search:</label>
<select id="categories">
<option value="none"></option>
</select>
<input id="search">
<强>的jQuery 强>
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"
}];
$(function() {
// Set Variables
var cats = [],
labels = {},
sel = $("#categories"),
search = $("#search");
// Sift out specific Categories
$.each(data, function(k, v) {
if (v.category !== "") {
cats.push(v.category);
console.log("Found Cat: " + v.category);
}
});
$.unique(cats);
console.log("All Cats: ", cats);
// Set Categories into Select element
$.each(cats, function(k, v) {
sel.append("<option value='" + v + "'>" + v + "</option>");
});
// Create Object of various data
labels.none = [];
$.each(cats, function(k, v) {
labels[v] = [];
});
for (var i = 0; i < data.length; i++) {
$.each(cats, function(k, v) {
if (data[i].category == "") {
labels.none.push(data[i].label);
}
if (data[i].category == v) {
labels[v].push(data[i].label);
}
});
}
$.each(labels, function(k, v) {
$.unique(labels[k]);
});
console.log("All Labels: ", labels);
// Set Autocomplete with variable data based on category selection
search.autocomplete({
delay: 0,
source: function(req, res) {
var cat = sel.val();
var data = labels[cat];
var results = [];
$.each(data, function(k, v) {
if (v.indexOf(req.term) == 0) {
results.push(v);
}
});
res(results);
}
});
});
我首先筛选出我们知道的数据类别。然后使用它来使用特殊的“none”选项填充Select元素。您可以返回并调整none
数据以包含所有标签。
接下来,我们解析所有标签并将它们排序到一个具有子数组的对象中,每个类别的名称都作为索引。我们将使用该类别的数据填充每个数组。
最后,我们使用source
的函数,以便我们可以选择要读取的数据集。 req.term
是在字段中输入的数据,我们需要返回匹配数据的数组。 indexOf()
的使用在这里很有帮助。当术语位于字符串的开头时,这将返回0
。然后,我们将结果数组传递给res
回调函数。
因此,使用您的示例,如果类别为“none”并且我们键入“an”,则会得到“anders”,“andreas”和“antal”。如果我们输入“和”,结果将按预期下降到'ansders'和'andreas'。