<script type="text/html" id="forTemplate"> <div class="layui-container"> <div class="layui-row"> <div class="layui-col-md6 layui-col-md-offset3"> <form class="layui-form" action="" lay-filter="userForm"> <div class="layui-form-item"> <label class="layui-form-label">所在地区</label> <div class="layui-input-block"> <select name="provience" id="SelectProvience" lay-filter="Provience" required lay-verify="required"> <option value="">请选择省份</option> </select> <select name="city" id="SelectCity" lay-filter="city" required lay-verify="required"> <option value="">请选择城市</option> </select> <select name="area" id="SelectArea" lay-filter="area" required lay-verify="required"> <option value="">请选择区县</option> </select> </form> </div> </div> </div> </script> 以上html代码如何实现省市区的下拉框回写省市区数据
时间: 2023-07-19 19:36:49 浏览: 127
要实现省市区的下拉框回写数据,你需要在页面加载时,先获取到要回写的省市区数据,然后通过 JavaScript 代码设置下拉框的选中项。例如,假设你的省市区数据是一个对象,包含三个属性 `province`、`city` 和 `area`,它们分别表示当前选中的省、市和区县,那么可以按照以下方式设置下拉框的选中项:
```javascript
// 获取要回写的省市区数据
var data = {
province: '广东省',
city: '深圳市',
area: '南山区'
};
// 设置省份下拉框的选中项
var provienceSelect = document.getElementById('SelectProvience');
provienceSelect.value = data.province;
layui.form.render('select');
// 设置城市下拉框的选中项
var citySelect = document.getElementById('SelectCity');
citySelect.value = data.city;
layui.form.render('select');
// 设置区县下拉框的选中项
var areaSelect = document.getElementById('SelectArea');
areaSelect.value = data.area;
layui.form.render('select');
```
以上代码将会把省市区下拉框的选中项设置为“广东省”、“深圳市”和“南山区”。请注意,这里使用了 layui 的 `form.render()` 方法来渲染下拉框,以确保选中项能够正确显示。
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