我正在尝试通过将 Javascript (vanilla) 与 Materialize 结合使用来更新选择小部件中的选项。我猜它与“动态生成的选择元素”有关,但我不确定该怎么做?
根据Materialise,我可能需要考虑实施:“此外,您将需要单独调用页面生成的任何动态生成的选择元素。” . 不幸的是,我不确定(没有找到)如何“动态生成选择元素”来更新/刷新选择小部件?
这是我的相关代码:
HTML
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!--Import Google Icon Font-->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!-- Compiled and minified CSS -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
<div class = "container">
<div class="row">
<div class="input-field col s3">
<button id = "btn" class="waves-effect waves-light btn-small"><i class="material-icons left">person_add</i>Add</button>
</div>
<div class="row">
<div class="input-field col s3">
<button id = "btnRemove" class="waves-effect waves-light btn-small"><i class="material-icons left">delete</i>Remove</button>
</div>
</div> <!-- CLOSE ROW -->
<div class="row">
<div>
<div style = "position:relative; top:-10px;" class="input-field col s6">
<select id="voteNoList" onchange="PersonInfo()" required>
<option value="">Vote Number?</option>
<!-- <?!= currListNo; ?>
-->
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
</div>
</div>
</div> <!-- CLOSE ROW -->
</div> <!-- CLOSE CONTAINER -->
Javascript(原版)
//------------
// AUTO
//------------
// Select
document.addEventListener('DOMContentLoaded', function() {
var el = document.querySelectorAll('select');
var instances = M.FormSelect.init(el);
});
// Button - Add
document.getElementById("btn").addEventListener("click", PersonInfo);
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