(后端开发人员试图在此处进行一些前端开发)
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。提交表单后,我看到文本字段值触及Web服务器,但是我看不到选择菜单值触及服务器。选择菜单的代码为:
<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>
选择菜单是here中所述的材料设计组件。
我与此组件关联的Javascript是:
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}"`);
});
我直接回答了几个问题:
- 我应该使用
<li>
而不是<option>
-上面的代码遵循网站上显示的示例。 - 应该有一个
name
属性吗?