我需要一个简单的自动完成搜索功能,但也允许用户输入多个值。我正在使用jQuery UI的自动完成小部件(http://jqueryui.com/autocomplete/),到目前为止,我已将源设置为仅搜索建议中的第一个字母。我现在想要添加的是用户从同一文本框中搜索多个项目的能力。 (即再次显示逗号建议后)
我一直试图搜索如何做到这一点。我唯一能找到的是可以添加multiple: true
(http://forum.jquery.com/topic/multiple-values-with-autocomplete)的选项。事情是它甚至没有在文档中列出,所以我不知道该选项是否已经改变或不再存在。
这是我的代码:
var items = [ 'France', 'Italy', 'Malta', 'England',
'Australia', 'Spain', 'Scotland' ];
$(document).ready(function () {
$('#search').autocomplete({
source: function (req, responseFn) {
var re = $.ui.autocomplete.escapeRegex(req.term);
var matcher = new RegExp('^' + re, 'i');
var a = $.grep(items, function (item, index) {
return matcher.test(item);
});
responseFn(a);
}
});
});
我尝试了什么:
var items = [ 'France', 'Italy', 'Malta', 'England',
'Australia', 'Spain', 'Scotland' ];
$(document).ready(function () {
$('#search').autocomplete({
source: function (req, responseFn) {
var re = $.ui.autocomplete.escapeRegex(req.term);
var matcher = new RegExp('^' + re, 'i');
var a = $.grep(items, function (item, index) {
return matcher.test(item);
});
responseFn(a);
},
multiple: true
});
});
答案 0 :(得分:11)
试试这个:
function split( val ) {
return val.split( /,\s*/ );
}
function extractLast( term ) {
return split( term ).pop();
}
$( "#search" )
.autocomplete({
minLength: 0,
source: function( request, response ) {
response( $.ui.autocomplete.filter(
items, extractLast( request.term ) ) );
},
focus: function() {
return false;
},
select: function( event, ui ) {
var terms = split( this.value );
terms.pop();
terms.push( ui.item.value );
terms.push( "" );
this.value = terms.join( ", " );
return false;
}
});
见DEMO
答案 1 :(得分:3)
要解决同一文本框中多个字符串的问题,并且包含一个正则表达式,只显示与字符串开头匹配的建议,我执行了以下操作:
$('#search').autocomplete({
minLength: 1,
source: function (request, response) {
var term = request.term;
// substring of new string (only when a comma is in string)
if (term.indexOf(', ') > 0) {
var index = term.lastIndexOf(', ');
term = term.substring(index + 2);
}
// regex to match string entered with start of suggestion strings
var re = $.ui.autocomplete.escapeRegex(term);
var matcher = new RegExp('^' + re, 'i');
var regex_validated_array = $.grep(items, function (item, index) {
return matcher.test(item);
});
// pass array `regex_validated_array ` to the response and
// `extractLast()` which takes care of the comma separation
response($.ui.autocomplete.filter(regex_validated_array,
extractLast(term)));
},
focus: function () {
return false;
},
select: function (event, ui) {
var terms = split(this.value);
terms.pop();
terms.push(ui.item.value);
terms.push('');
this.value = terms.join(', ');
return false;
}
});
function split(val) {
return val.split(/,\s*/);
}
function extractLast(term) {
return split(term).pop();
}