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我有一些現有的jquery自動完成代碼，它具有我需要的所有功能。自動完成功能會搜索組合框以查找以第一個字符開頭的匹配項。所有我需要做的就是添加多重選擇的功能，例如：Jquery自動完成與組合框上的多個選擇
jqueryui.com/autocomplete/#multiple
這裏是我的代碼：
<html>
<head>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<meta name="HandheldFriendly" content="True">
<meta name="PalmComputingPlatform" content="True">
<meta http-equiv=Content-Type content="text/html; charset=windows-1252">
<title>WebFOCUS Report</title>
</head>
<body>
<br />
<br />
<br />
<div>
Please choose an option :
<select size="3" id="decision2">
<option selected>1521</option>
<option>3336</option>
<option>5454</option>
<option>7890</option>
<option>2178</option>
</select>
</div>
<style>
.custom-combobox {
position: relative;
display: inline-block;
}
.custom-combobox-toggle {
position: absolute;
top: 0;
bottom: 0;
margin-left: -1px;
padding: 0;
}
.custom-combobox-input {
margin: 0;
padding: 5px 10px;
}
</style>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<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({
classes: {
"ui-tooltip": "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")
.on("mousedown", function() {
wasOpen = input.autocomplete("widget").is(":visible");
})
.on("click", function() {
input.trigger("focus");
// Close if already visible
if (wasOpen) {
return;
}
// Pass empty string as value to search for, displaying all results
input.autocomplete("search", "");
});
},
_source: function(request, response) {
var matcher = new RegExp("\\b" + $.ui.autocomplete.escapeRegex(request.term), "i");
response(this.element.children("option").map(function() {
var text = $(this).text();
if (this.value && (!request.term || matcher.test(text)))
return {
label: text,
value: text,
option: this
};
}));
},
_removeIfInvalid: function(event, ui) {
// Selected an item, nothing to do
if (ui.item) {
return;
}
// Search for a match (case-insensitive)
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children("option").each(function() {
if ($(this).text().toLowerCase() === valueLowerCase) {
this.selected = valid = true;
return false;
}
});
// Found a match, nothing to do
if (valid) {
return;
}
// Remove invalid value
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.autocomplete("instance").term = "";
},
_destroy: function() {
this.wrapper.remove();
this.element.show();
}
});
$("#decision2").combobox();
$("#decision2").on("click", function() {
$("#decision2").toggle();
});
});
</script>
</body>
</html>
歡迎堆棧溢出！您可以先參加[tour]（http://stackoverflow.com/tour）並學習[如何提出一個好問題]（http://stackoverflow.com/help/how-to-ask）並創建一個[最小，完整和可驗證]（http://stackoverflow.com/help/mcve）示例。提供你的代碼，我們沒有足夠的時間在github上搜索它。我們會更容易幫助你。 –
謝謝@AlexandreT – dmoses