(后端开发者在这里尝试进行一些前端开发)
我有一个简单的HTML表单,其中包含一些文本字段输入和一个选择菜单。当提交表单时,我可以看到文本字段值发送到了 Web 服务器,但是我没有看到选择菜单的值发送到服务器。选择菜单的代码如下:
<div class="mdc-select mdc-select--outlined mdc-select--with-leading-icon role-list">
<i class="material-icons mdc-select__icon" tabindex="0" role="button">work_outline</i>
<div class="mdc-select__anchor role-width-class">
<i class="mdc-select__dropdown-icon"></i>
<div id="role" class="mdc-select__selected-text" aria-labelledby="roles-select-label"></div>
<div class="mdc-notched-outline">
<div class="mdc-notched-outline__leading"></div>
<div class="mdc-notched-outline__notch">
<label id="roles-select-label" class="mdc-floating-label">Role</label>
</div>
<div class="mdc-notched-outline__trailing"></div>
</div>
</div>
<div class="mdc-select__menu mdc-menu mdc-menu-surface role">
<ul class="mdc-list">
<li class="mdc-list-item" data-value="0">
Painter
</li>
<li class="mdc-list-item" data-value="1">
Electrician
</li>
<li class="mdc-list-item" data-value="2">
Decorator
</li>
</ul>
</div>
</div>
是一个Material Design组件,可以在这里找到相关描述。与此组件关联的JavaScript代码如下:
mdc.select.MDCSelect.attachTo(document.querySelector('.role-list'));
const role = new mdc.select.MDCSelect(document.querySelector('.role-list'));
role.listen('change', () => {
alert(`Selected option at index ${role.selectedIndex} with value "${role.value}"`);
});
我一开始就有几个问题:
- 我应该使用
<li>
而不是<option>
吗?上面的代码遵循了网站上的示例。 - 是否应该有
name
属性?