mpvue微信小程序多列选择器用法之省份城市选择的实现

<picker mode="region" bindchange="bindRegionChange" value="{{region}}" custom-item="{{customItem}}" >

{ "code": 0, "msg": "success", "data": [ {  "id": 2,  "name": "北京",  "children": [  {   "id": 36,   "name": "北京市"  }  ] } ]}

<picker  mode="multiSelector"  @change="bindCityChange"  @columnchange="bindCityColumnChange"  :value="multiIndex"  :range="multiArray"  range-key="name" >  <view class="picker">选择城市{{userInfo.province.name}},{{userInfo.city.name}}</view> </picker>

 mode="multiSelector"

[["北京", "湖南"], ["长沙", "永州"]]

// 城市选择 获取选中的值 [0,0] 这里需要注意的是获取值的方式在mpvue中通过e.mp.detail.value而不是e.detail.value bindCityChange(e) { // 选中的值索引 console.log(e.mp.detail.value[0], e.mp.detail.value[1]); // 选中的省份和城市数据 console.log( this.multiArray[0][e.mp.detail.value[0]], this.multiArray[1][e.mp.detail.value[1]] ); this.userInfo.province = this.multiArray[0][e.mp.detail.value[0]]; this.userInfo.city = this.multiArray[1][e.mp.detail.value[1]]; },

console.log( "修改的列为", e.mp.detail.column, "，值为", e.mp.detail.value );

// 监听滚动事件 滚动第一列 修改第二列数据 bindCityColumnChange(e) { // 更新multiIndex的值 this.multiIndex[e.mp.detail.column] = e.mp.detail.value; //加载对应省份下城市数据 switch (e.mp.detail.column) { case 0:  // this.multiArray[1] = this.cityList[e.mp.detail.value].children;  this.multiArray = [  this.cityList,  this.cityList[e.mp.detail.value].children  ];  break; } },

data() { return {multiIndex: [0, 0], multiArray: [], } }