Dynamically display select drop-down list data-JS Tutorial-php.cn

Dynamically display select drop-down list data

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Release： 2018-03-23 15:32:38

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This time I will bring you dynamic display of select drop-down list data, what are the precautions for dynamically displaying select drop-down list data, the following is a practical case, let's take a look.

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>www.jb51.net 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 = [
      { 'id': 1, 'name': '南京大学' },
      { 'id': 2, 'name': '北京大学' },
      { 'id': 3, 'name': '浙江大学' },
      { 'id': 4, 'name': '清华大学' },
      { 'id': 5, 'name': '湖南大学' },
    ];
    //页面加载运行，将数据集绑定select，显示默认选中学校
    $(function () {
      bindSelect();
      $('#info').text($('#schoolSelect').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 = $('#schoolSelect');
      $schoolSelect.change(function () {
        $('#info').text($(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>' + item.name + '</option>');
          } else {
            $schoolSelect.append('<option value="&#39; + item.id + &#39;">' + item.name + '</option>');
          }
        }
      }
    }
  </script>
</head>
<body>
  <form>
    <select id="schoolSelect">
    </select>
    <label id="info"></label>
  </form>
</body>
</html>

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I believe you have mastered the method after reading the case in this article. For more exciting content, please pay attention to other related articles on the php Chinese website!