Question

我这里有来自http://jqueryui.com/autocomplete/的代码，它的效果非常好但是我找不到在文本视图中获取所选项目的价值的方法我尝试了类似这样的东西，但它不起作用

<script>
$(document).ready(function () {
    $('#tags').change(function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
});
</script>

<!doctype html>

<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>jQuery UI Autocomplete - Default functionality</title>
  <link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
  <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
  <script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
  <link rel="stylesheet" href="/resources/demos/style.css" />
  <script>
  $(function() {
    var availableTags = [
      "ActionScript",
      "AppleScript",
      "Asp",
      "BASIC",
      "C",
      "C++",
      "Clojure",
      "COBOL",
      "ColdFusion",
      "Erlang",
      "Fortran",
      "Groovy",
      "Haskell",
      "Java",
      "JavaScript",
      "Lisp",
      "Perl",
      "PHP",
      "Python",
      "Ruby",
      "Scala",
      "Scheme"
    ];
    $( "#tags" ).autocomplete({
      source: availableTags
    });
  });
  </script>
<script>
$(document).ready(function () {
    $('#tags').change(function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
});
</script>
</head>
<body>

<div class="ui-widget">
  <label for="tags">Tags: </label>
  <input id="tags" />
  <div id="tagsname"></div>
</div>


</body>
</html>

Answer 1

当自动填充更改某个值时，它会触发autocompletechange事件，而不是更改事件

$(document).ready(function () {
    $('#tags').on('autocompletechange change', function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
});

演示：Fiddle

另一个解决方案是使用select事件，因为只有在输入模糊时才会触发更改事件

$(document).ready(function () {
    $('#tags').on('change', function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
    $('#tags').on('autocompleteselect', function (e, ui) {
        $('#tagsname').html('You selected: ' + ui.item.value);
    });
});

演示：Fiddle

Answer 2

为了更广泛地回答这个问题，答案是：

select: function( event , ui ) {
    alert( "You selected: " + ui.item.label );
}

完整示例：

＆＃13;

$('#test').each(function(i, el) {
    var that = $(el);
    that.autocomplete({
        source: ['apple','banana','orange'],
        select: function( event , ui ) {
            alert( "You selected: " + ui.item.label );
        }
    });
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/themes/smoothness/jquery-ui.css" />
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"></script>

Type a fruit here: <input type="text" id="test" />

＆＃13;

Answer 3

我想要一些非常接近这一点的东西 - 用户选择一个项目的那一刻，即使只是将箭头键击中一个（焦点），我希望该数据项附加到相关标签上。当他们再次输入而不选择其他项目时，我希望清除数据。

(function() {
    var lastText = '';

    $('#MyTextBox'), {
        source: MyData
    })
    .on('autocompleteselect autocompletefocus', function(ev, ui) {
        lastText = ui.item.label;
        jqTag.data('autocomplete-item', ui.item);
    })
    .keyup(function(ev) {
        if (lastText != jqTag.val()) {
            // Clear when they stop typing
            jqTag.data('autocomplete-item', null);

            // Pass the event on as autocompleteclear so callers can listen for select/clear
            var clearEv = $.extend({}, ev, { type: 'autocompleteclear' });
            return jqTag.trigger(clearEv);
    });
})();

有了这个，'autocompleteselect'和'autocompletefocus'仍然会在您预期的时候正确启动，但结果显示所选的完整数据项始终在标签上可用。 'autocompleteclear'现在在清除选择时触发，通常是输入其他内容。

Answer 4

$(document).ready(function () {
    $('#tags').on('change', function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
    $('#tags').on('blur', function (e, ui) {
        $('#tagsname').html('You selected: ' + ui.item.value);
    });
});

如何获取自动完成中所选项目的值

4 个答案: