jQuery dynamically displays select drop-down list data-JS Tutorial-php.cn

jQuery dynamically displays select drop-down list data

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Release： 2018-03-14 17:56:39

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This time I bring you jQueryDynamic display of selectdrop-down list data, what are the precautions for jQuery to dynamically display select drop-down list data, the following are Let’s take a look at practical cases.

Let’s take a look at the running effect first:

The specific code is as follows:

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="UTF-8">
  <title>jQuery动态显示表单</title>
  <script type="text/javascript" src="jquery-1.7.1.min.js"></script>
  <script type="text/javascript">
    //数据集
    var schools = [
      { &#39;id&#39;: 1, &#39;name&#39;: &#39;南京大学&#39; },
      { &#39;id&#39;: 2, &#39;name&#39;: &#39;北京大学&#39; },
      { &#39;id&#39;: 3, &#39;name&#39;: &#39;浙江大学&#39; },
      { &#39;id&#39;: 4, &#39;name&#39;: &#39;清华大学&#39; },
      { &#39;id&#39;: 5, &#39;name&#39;: &#39;湖南大学&#39; },
    ];
    //页面加载运行，将数据集绑定select，显示默认选中学校
    $(function () {
      bindSelect();
      $(&#39;#info&#39;).text($(&#39;#schoolSelect&#39;).val());
    });
    //将数据集绑定select，重新选择学校后显示选中学校
    bindSelect = function () {
      var $schoolSelect = $(&#39;#schoolSelect&#39;);
      $schoolSelect.change(function () {
        $(&#39;#info&#39;).text($(this).val());
      });
      if (schools.length > 0) {
        for (var i = 0; i < schools.length; i++) {
          var item = schools[i];
          if (item.id == 2) {
            $schoolSelect.append(&#39;<option value="&#39; + item.id + &#39;" selected>&#39; + item.name + &#39;</option>&#39;);
          } else {
            $schoolSelect.append(&#39;<option value="&#39; + item.id + &#39;">&#39; + item.name + &#39;</option>&#39;);
          }
        }
      }
    }
  </script>
</head>
<body>
  <form>
    <select id="schoolSelect">
    </select>
    <label id="info"></label>
  </form>
</body>
</html>

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