当用户从下拉列表中选择一个选项时,我正在尝试添加标签。所以他们可以选择多个项目,然后在下面会有标签来展示这些选择。
我目前的尝试,试图取自:https ://material.io/develop/web/components/chips/
<link rel="stylesheet" href="https://unpkg.com/material-components-web@latest/dist/material-components-web.min.css">
<div class="mdc-chip-set mdc-chip-set--input" role="grid"></div>
<script src="https://unpkg.com/material-components-web@latest/dist/material-components-web.min.js"></script>
<script type="text/javascript">
const chipSetEl = mdc.chips.MDCChipSet.attachTo(document.querySelector('.mdc-chip-set'));
//const chipSet = new mdc.chips.MDCChipSet(chipSetEl);
$(function() {
$(document).on("change", '#search_selectWrap', function() {
const chipEl = document.createElement('div');
// ... perform operations to properly populate/decorate chip element ...
chipSetEl.appendChild(chipEl);
//chipSet.addChip(chipEl);
});
});
</script>
我的错误目前是:
chipSetEl.appendChild 不是函数
但是,如果我取消注释芯片集初始化,我也会收到错误消息:
this.root_.querySelectorAll 不是函数
芯片组 el console.log:
编辑
chipSetEl的新定义和定制化的尝试:
const chipSetEl = document.querySelector('.mdc-chip-set');
const chipSet = new mdc.chips.MDCChipSet(chipSetEl);
console.log(chipSetEl);
$(function()
{
$(document).on("change", '#search_selectWrap',function () {
const chipEl = document.createElement('div');
chipEl.shouldRemoveOnTrailingIconClick = true;
chipEl.innerHTML = "hi";
chipEl.style["background-color"] = "green";
// ... perform operations to properly populate/decorate chip element ...
chipSetEl.appendChild(chipEl);
chipSet.addChip(chipEl);
});
});