小程序picker 多列选择详解

绝地灬酷狼 2023-01-06 01:23 305阅读 0赞

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70][]

需求：选择左边的选项，右边会显示对应的数据。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70 1][]

如果你的数据和官方文档一样，数组套数组的形式，那直接复制复制就行了，这篇文章主要讲，数据是数组里面套对象的这种情况

我的数据结构如下，这就用用到 range-key 属性，

### **首先，通过 range-key 来指定 Object 中 key 的值作为选择器显示内容，如果不加，则页面上显示的都是【object Object】** ###

### **然后，下面展示的数据里面也要添加name属性，要是不加，页面也是显示的【object Object】** ###

最后，其他的选择就是直接根据官方文档的来就行了[官方文档戳这里][Link 1]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70 2][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70 3][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70 4][]

<picker wx:else class="" mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange"
              value="{
       {multiIndex}}" range="{
       {multiArray}}" range-key="name">
              <view class="weui-input picker">
                {
       {multiArray[0][multiIndex[0]].name}} 
                {
       {multiArray[1][multiIndex[1]].name}}
              </view>
            </picker>

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlcm9fcm9uZw_size_16_color_FFFFFF_t_70]: /images/20221119/482a138f3c4149868f461e4921580921.png
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[Link 1]: https://developers.weixin.qq.com/miniprogram/dev/component/picker.html
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