详解vuejs2.0 select 动态绑定下拉框支持多选

select 下拉选择

产品类型:这一项是select 涉及到父子组件信息传递 下面拆开讲解

父组件

 <div class="sales-board-line">
    <div class="sales-board-line-left">
     产品类型:
    </div>
    <div class="sales-board-line-right">
     <v-selection :selections="buyTypes" @on-change="onParamChange('buyType', $event)"></v-selection>
    </div>
   </div>
<script>
import VSelection from '../../components/base/selection'
import _ from 'lodash'
export default {
 components: {
 VSelection,
 VCounter,
 VChooser,
 VMulChooser,
 MyDialog: Dialog,
 BankChooser,
 CheckOrder
 },
 data () {
 return {
  buyNum: 0,
  buyType: {},
  versions: [],
  period: {},
  price: 0,
  versionList: [
  {
   label: '客户版',
   value: 0
  },
  {
   label: '代理商版',
   value: 1
  },
  {
   label: '专家版',
   value: 2
  }
  ],
  periodList: [
  {
   label: '半年',
   value: 0
  },
  {
   label: '一年',
   value: 1
  },
  {
   label: '三年',
   value: 2
  }
  ],
  buyTypes: [
  {
   label: '入门版',
   value: 0
  },
  {
   label: '中级版',
   value: 1
  },
  {
   label: '高级版',
   value: 2
  }
  ],
  isShowPayDialog: false,
  bankId: null,
  orderId: null,
  isShowCheckOrder: false,
  isShowErrDialog: false
 }
 },
 methods: {
 onParamChange (attr, val) {
  this[attr] = val
  // this.getPrice()
  console.log(this[attr], attr)
 },
 getPrice () {
  let buyVersionsArray = _.map(this.versions, (item) => {
  return item.value
  })
  let reqParams = {
  buyNumber: this.buyNum,
  buyType: this.buyType.value,
  period: this.period.value,
  version: buyVersionsArray.join(',')
  }
  this.$http.post('/api/getPrice', reqParams)
  .then((res) => {
  this.price = res.data.amount
  })
 },

 onChangeBanks (bankObj) {
  this.bankId = bankObj.id
 },
 confirmBuy () {
  let buyVersionsArray = _.map(this.versions, (item) => {
  return item.value
  })
  let reqParams = {
  buyNumber: this.buyNum,
  buyType: this.buyType.value,
  period: this.period.value,
  version: buyVersionsArray.join(','),
  bankId: this.bankId
  }
  this.$http.post('/api/createOrder', reqParams)
  .then((res) => {
  this.orderId = res.data.orderId
  this.isShowCheckOrder = true
  this.isShowPayDialog = false
  }, (err) => {
  this.isShowBuyDialog = false
  this.isShowErrDialog = true
  })
 }
 },
 mounted () {
 this.buyNum = 1
 this.buyType = this.buyTypes[0]
 this.versions = [this.versionList[0]]
 this.period = this.periodList[0]
 }
}
</script>

:selections=”buyTypes” 传入子组件 在子组件 接收这个参数

@on-change=”onParamChange(‘buyType', $event)” 通过这个事件 接收 子组件传入 的参数

子组件

<template>
 <div class="selection-component">
  <div class="selection-show" @click="toggleDrop">
  <span>{{ selections[nowIndex].label }}</span>
  <div class="arrow"></div>
  </div>
  <div class="selection-list" v-if="isDrop">
  <ul>
   <li v-for="(item, index) in selections" @click="chooseSelection(index)">{{ item.label }}</li>
  </ul>
  </div>
 </div>
</template>

<script>
export default {
 props: {
 selections: {
  type: Array,
  default: [{
  label: 'test',
  value: 0
  }]
 }
 },
 data () {
 return {
  isDrop: false,
  nowIndex: 0
 }
 },
 methods: {
 toggleDrop () {
  this.isDrop = !this.isDrop
 },
 chooseSelection (index) {
  this.nowIndex = index
  this.isDrop = false
  this.$emit('on-change', this.selections[this.nowIndex])
 }
 }
}
</script>
<style scoped>
.selection-component {
 position: relative;
 display: inline-block;
}
.selection-show {
 border: 1px solid #e3e3e3;
 padding: 0 20px 0 10px;
 display: inline-block;
 position: relative;
 cursor: pointer;
 height: 25px;
 line-height: 25px;
 border-radius: 3px;
 background: #fff;
}
.selection-show .arrow {
 display: inline-block;
 border-left: 4px solid transparent;
 border-right: 4px solid transparent;
 border-top: 5px solid #e3e3e3;
 width: 0;
 height: 0;
 margin-top: -1px;
 margin-left: 6px;
 margin-right: -14px;
 vertical-align: middle;
}
.selection-list {
 display: inline-block;
 position: absolute;
 left: 0;
 top: 25px;
 width: 100%;
 background: #fff;
 border-top: 1px solid #e3e3e3;
 border-bottom: 1px solid #e3e3e3;
 z-index: 5;
}
.selection-list li {
 padding: 5px 15px 5px 10px;
 border-left: 1px solid #e3e3e3;
 border-right: 1px solid #e3e3e3;
 cursor: pointer;
 background: #fff;
 white-space: nowrap;
 overflow: hidden;
 text-overflow: ellipsis;

}
.selection-list li:hover {
 background: #e3e3e3;
}
</style>

select 多选

产品版本:这一项是select 涉及到父子组件信息传递 下面拆开讲解

父组件

<div class="sales-board-line">
    <div class="sales-board-line-left">
     产品版本:
    </div>
    <div class="sales-board-line-right">
     <v-mul-chooser
     :selections="versionList"
     @on-change="onParamChange('versions', $event)"></v-mul-chooser>
    </div>
   </div>

子组件

<template>
 <div class="chooser-component">
  <ul class="chooser-list">
   <li
   v-for="(item, index) in selections"
   @click="toggleSelection(index)"
   :title="item.label"
   :class="{active: checkActive(index)}"
   >{{ item.label }}</li>
  </ul>
  </div>
 </div>
</template>

<script>
import _ from 'lodash'
export default {
 props: {
 selections: {
  type: Array,
  default: [{
  label: 'test',
  value: 0
  }]
 }
 },
 data () {
 return {
  nowIndexes: [0]
 }
 },
 methods: {
 toggleSelection (index) {
  if (this.nowIndexes.indexOf(index) === -1) {
  this.nowIndexes.push(index) 
  }
  else {
  this.nowIndexes = _.remove(this.nowIndexes, (idx) => {
   return idx !== index
  })
  }
  let nowObjArray = _.map(this.nowIndexes, (idx) => {
  return this.selections[idx]
  })
  this.$emit('on-change', nowObjArray)
 },
 checkActive (index) {
  return this.nowIndexes.indexOf(index) !== -1
 }
 }
}
</script>

<style scoped>
.chooser-component {
 position: relative;
 display: inline-block;
}
.chooser-list li{
 display: inline-block;
 border: 1px solid #e3e3e3;
 height: 25px;
 line-height: 25px;
 padding: 0 8px;
 margin-right: 5px;
 border-radius: 3px;
 text-align: center;
 cursor: pointer;
}
.chooser-list li.active {
 border-color: #4fc08d;
 background: #4fc08d;
 color: #fff;
}
</style>

这里用到 lodash 因为vuejs2.0 放弃了$.remove 方法 可以通过lodash 方法解决

以上所述是小编给大家介绍的vuejs2.0 select动态绑定下拉框详解整合,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!

华山资源网 Design By www.eoogi.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
华山资源网 Design By www.eoogi.com

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?