我有一个简单的jQuery代码来设置自动完成功能:
$(document).ready(function() {
fInitApp();
});
function fInitApp(){
$("#myList").autocomplete({
minLength: 2,
/*.....,*/
dataType : "json"
});
}
HTML
<input name="myList" id="myList">
我需要在列表的最底部添加一个分隔线,其中包含一个永久性菜单项,即:
[sugg ]
suggestion 1
suggestion 2
suggestion 3
suggestion 4
------------
my custom link
如果可以添加此底部项目,那么我可以只滚动建议列表而不显示底部项目吗?即:
[sugg ]
^
suggestion 1
suggestion 2
suggestion 3
suggestion 4
v
------------
my custom link
答案 0 :(得分:4)
您可以覆盖自动填充的_renderMenu
方法。 E.g:
/* saves the current behavior of _renderMenu */
var render = $('#myList').autocomplete('instance')._renderMenu;
/* overrides the default method */
$('#myList').autocomplete('instance')._renderMenu = function(ul, items) {
/* adds your fixed item */
items.push({ label: 'my custom link', value: 'my custom link' });
/* calls the default behavior again */
render.call(this, ul, items);
};
我为你做了一个例子。开始输入'co',您会看到COBOL
和ColdFusion
,但您会看到固定的最后一项ES 2015
。如果您开始输入“jav”等,也会发生同样的情况。看看:
$(document).ready(function() {
fInitApp();
});
function fInitApp() {
$('#myList').autocomplete({
minLength: 1,
source: [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl",
"PHP",
"Python",
"Ruby",
"Scala",
"Scheme"
],
dataType: "json"
});
var render = $('#myList').autocomplete('instance')._renderMenu;
$('#myList').autocomplete('instance')._renderMenu = function(ul, items) {
items.push({
label: 'ES 2015',
value: 'ES 2015',
last: true
});
render.call(this, ul, items);
};
var renderItem = $('#myList').autocomplete('instance')._renderItem;
$('#myList').autocomplete('instance')._renderItem = function(ul, item) {
if (item.last) {
setTimeout(function() {
ul.find('li:last-child').css({
position: 'fixed',
top: ul.offset().top + (ul[0].scrollHeight === ul[0].clientHeight ? ul.offset().height : ul[0].clientHeight),
left: ul[0].style.left,
width: 'calc(145px - 1.4em)',
border: '1px solid #CCC',
borderTop: '2px solid #999',
backgroundColor: '#FFEFFE'
});
}, 0);
}
return renderItem.call(this, ul, item);
};
}
.ui-autocomplete {
max-height: 125px;
overflow-y: auto;
overflow-x: hidden;
}
<link href="https://code.jquery.com/ui/1.11.4/themes/black-tie/jquery-ui.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-1.11.3.js"></script>
<script src="https://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<input name="myList" id="myList">
答案 1 :(得分:0)
您可以使用“响应”事件。有关更多信息,请参阅 https://api.jqueryui.com/autocomplete/#event-response
//add option in autosuggest list, that would be shown on every search even if search result is null.
$("#myList").autocomplete({
response: function (event, ui) {
ui.content.push({ label: "my custom link", value: "my custom link"});
}
});