本文实例为大家分享了小程序实现自定义多层级单选和多选的具体代码，供大家参考，具体内容如下
效果：
ps：这儿是用自定义的下拉框，我把它封装成了一个组件
wxml
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<view class="select-box"> <view class="select-title"> <view class="cell-border"> <van-field value="{{ layout }}" data-key="layout" placeholder="请输入" required icon="arrow" label="户型" bind:tap="onChange" /> </view> </view> <view class="select-list" wx:if="{{show}}"> <view class="option" wx:for="{{layouts}}" wx:key="index"> <view class="{{curItem.checked ? 'option-item-active' : 'option-item'}}" wx:for="{{item.column}}" wx:key="index" wx:for-item="curItem" data-key="{{curItem.key}}" data-colkey="{{item.colKey}}" data-name="{{curItem.name}}" bind:tap="getOptionItem"> {{curItem.name}} </view> </view> </view></view> |
wxss
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.select-box{ width: 100%; padding: 20rpx; box-sizing: border-box;} .cell-border { border-radius: 6rpx; border: 1px solid #999; margin-bottom: 10rpx;}.select-list{ display: flex; flex-direction: row; justify-content: space-around; width: 100%; height: 360rpx; padding: 20rpx; box-sizing: border-box; background-color: #fff; border: 1px solid #eee;}.select-list .option{ display: flex; flex-direction: column; font-size: 24rpx;}.option-item{ width: 80rpx; height: 100rpx; background-color: #eee; text-align: center; margin-top: 5px; padding: 2px; } .option-item-active{ width: 80rpx; height: 100rpx; background-color: #FF6600; text-align: center; margin-top: 5px; padding: 2px; color:#fff;}json{ "component": true, "usingComponents": { "van-field": "../../vant/field/index", } } |
js
ps:data是组件本身的数据，layouts是数据源
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Component({ properties:{ }, data:{ show:false, curKey:-1, colKey:-1, layouts:[ { colKey:0, column:[ {name:"1室",key:0,}, {name:"2室",key:1,}, {name:"3室",key:2,}, {name:"4室",key:3,}, {name:"5室",key:4,}, {name:"6室",key:5,} ] }, { colKey:1, column:[ {name:"1厅",key:0,}, {name:"2厅",key:1,}, {name:"3厅",key:2,}, {name:"4厅",key:3,}, {name:"5厅",key:4,}, {name:"6厅",key:5,} ] }, { colKey:2, column:[ {name:"1厨",key:0,}, {name:"2厨",key:1,}, {name:"3厨",key:2,}, {name:"4厨",key:3,}, {name:"5厨",key:4,}, {name:"6厨",key:5,}] }, { colKey:3, column:[ {name:"1卫",key:0,}, {name:"2卫",key:1,}, {name:"3卫",key:2,}, {name:"4卫",key:3,}, {name:"5卫",key:4,}, {name:"6卫",key:5,} ] }, { colKey:4, column:[ {name:"1阳台",key:0,}, {name:"2阳台",key:1,}, {name:"3阳台",key:2,}, {name:"4阳台",key:3,}, {name:"5阳台",key:4,}, {name:"6阳台",key:5,} ] } ] }, methods:{ onChange(){ const {show} = this.data; this.setData({ show:!show }) }, getOptionItem(event){ console.log("event",event) const key = event.currentTarget.dataset.key; const cK = event.currentTarget.dataset.colkey; const {curKey,colKey,layouts} = this.data; this.setData({ curKey:key, colKey:cK }) //用checked字段判断，允许每列之间单选,多行之间多选 layouts[cK].column.map(cur => { return cur.checked = false; }) layouts[cK].column[key].checked = true; this.setData({layouts}) } }}) |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_44268473/article/details/103612075
