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ElementPlus Input 输入框

2023-04-09 07:32

 ElementPlus Input 输入框

nput 输入框

通过鼠标或键盘输入字符

Input 为受控组件,它总会显示 Vue 绑定值。
通常情况下,应当处理 input 事件,并更新组件的绑定值(或使用v-model)。否则,输入框内显示的值将不会改变。
不支持 v-model 修饰符。

基础用法


<template>
  <el-input v-model="input" placeholder="请输入内容"></el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input: ref(""),
      }
    },
  })
</script>

禁用状态


通过 disabled 属性指定是否禁用 input 组件

<template>
  <el-input placeholder="请输入内容" v-model="input" :disabled="true"> </el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input: ref(""),
      }
    },
  })
</script>

可清空


使用clearable属性即可得到一个可清空的输入框

<template>
  <el-input placeholder="请输入内容" v-model="input" clearable> </el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input: ref(""),
      }
    },
  })
</script>

密码框


使用show-password属性即可得到一个可切换显示隐藏的密码框

<template>
  <el-input placeholder="请输入密码" v-model="input" show-password></el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input: ref(""),
      }
    },
  })
</script>

带 icon 的输入框

带有图标标记输入类型


可以通过 prefix-icon 和 suffix-icon 属性在 input 组件首部和尾部增加显示图标,也可以通过 slot 来放置图标。

<template>
  <div class="demo-input-suffix">
  属性方式:
  <el-input
    placeholder="请选择日期"
    suffix-icon="el-icon-date"
    v-model="input1"
  >
  </el-input>
  <el-input
    placeholder="请输入内容"
    prefix-icon="el-icon-search"
    v-model="input2"
  >
  </el-input>
</div>
<div class="demo-input-suffix">
  slot 方式:
  <el-input placeholder="请选择日期" v-model="input3">
    <template #suffix>
      <i class="el-input__icon el-icon-date"></i>
    </template>
  </el-input>
  <el-input placeholder="请输入内容" v-model="input4">
    <template #prefix>
      <i class="el-input__icon el-icon-search"></i>
    </template>
  </el-input>
</div>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input1: ref(""),
        input2: ref(""),
        input3: ref(""),
        input4: ref(""),
      }
    },
  })
</script>
<style>
  .demo-input-label {
    display: inline-block;
    width: 130px;
  }
</style>

文本域

用于输入多行文本信息,通过将 type 属性的值指定为 textarea。


文本域高度可通过 rows 属性控制

<template>
  <el-input type="textarea" :rows="2" placeholder="请输入内容" v-model="textarea">
</el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        textarea: ref(""),
      }
    },
  })
</script>

可自适应文本高度的文本域

通过设置 autosize 属性可以使得文本域的高度能够根据文本内容自动进行调整,并且 autosize 还可以设定为一个对象,指定最小行数和最大行数。


<template>
  <el-input type="textarea" autosize placeholder="请输入内容" v-model="textarea1">
</el-input>
<div style="margin: 20px 0;"></div>
<el-input
  type="textarea"
  :autosize="{ minRows: 2, maxRows: 4}"
  placeholder="请输入内容"
  v-model="textarea2"
>
</el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        textarea1: ref(""),
        textarea2: ref(""),
      }
    },
  })
</script>

复合型输入框

可前置或后置元素,一般为标签或按钮

可通过 slot 来指定在 input 中前置或者后置内容。

<template>
  <div>
  <el-input placeholder="请输入内容" v-model="input1">
    <template #prepend>Http://</template>
  </el-input>
</div>
<div style="margin-top: 15px">
  <el-input placeholder="请输入内容" v-model="input2">
    <template #append>.com</template>
  </el-input>
</div>
<div style="margin-top: 15px">
  <el-input placeholder="请输入内容" v-model="input3" class="input-with-select">
    <template #prepend>
      <el-select v-model="select" placeholder="请选择">
        <el-option label="餐厅名" value="1"></el-option>
        <el-option label="订单号" value="2"></el-option>
        <el-option label="用户电话" value="3"></el-option>
      </el-select>
    </template>
    <template #append>
      <el-button icon="el-icon-search"></el-button>
    </template>
  </el-input>
</div>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input1: ref(""),
        input2: ref(""),
        input3: ref(""),
        select: ref(""),
      }
    },
  })
</script>
<style>
  .el-select .el-input {
    width: 130px;
  }
  .input-with-select .el-input-group__prepend {
    background-color: #fff;
  }
</style>

尺寸


可通过 size 属性指定输入框的尺寸,除了默认的大小外,还提供了 large、small 和 mini 三种尺寸。

<template>
  <div class="demo-input-size">
  <el-input
    placeholder="请输入内容"
    suffix-icon="el-icon-date"
    v-model="input1"
  >
  </el-input>
  <el-input
    size="medium"
    placeholder="请输入内容"
    suffix-icon="el-icon-date"
    v-model="input2"
  >
  </el-input>
  <el-input
    size="small"
    placeholder="请输入内容"
    suffix-icon="el-icon-date"
    v-model="input3"
  >
  </el-input>
  <el-input
    size="mini"
    placeholder="请输入内容"
    suffix-icon="el-icon-date"
    v-model="input4"
  >
  </el-input>
</div>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        input1: ref(""),
        input2: ref(""),
        input3: ref(""),
        input4: ref(""),
      }
    },
  })
</script>

带输入建议

根据输入内容提供对应的输入建议


autocomplete 是一个可带输入建议的输入框组件,fetch-suggestions 是一个返回输入建议的方法属性,如 querySearch(queryString, cb),在该方法中你可以在你的输入建议数据准备好时通过 cb(data) 返回到 autocomplete 组件中。
<template>
  <el-row class="demo-autocomplete">
  <el-col :span="12">
    <div class="sub-title">激活即列出输入建议</div>
    <el-autocomplete
      class="inline-input"
      v-model="state1"
      :fetch-suggestions="querySearch"
      placeholder="请输入内容"
      @select="handleSelect"
    ></el-autocomplete>
  </el-col>
  <el-col :span="12">
    <div class="sub-title">输入后匹配输入建议</div>
    <el-autocomplete
      class="inline-input"
      v-model="state2"
      :fetch-suggestions="querySearch"
      placeholder="请输入内容"
      :trigger-on-focus="false"
      @select="handleSelect"
    ></el-autocomplete>
  </el-col>
</el-row>
</template>

<script>
  import { defineComponent, ref, onMounted } from "vue"

  export default defineComponent({
    setup() {
      const restaurants = ref([])
      const querySearch = (queryString, cb) => {
        var results = queryString
          ? restaurants.value.filter(createFilter(queryString))
          : restaurants.value
        // 调用 callback 返回建议列表的数据
        cb(results)
      }
      const createFilter = (queryString) => {
        return (restaurant) => {
          return (
            restaurant.value
              .toLowerCase()
              .indexOf(queryString.toLowerCase()) === 0
          )
        }
      }
      const loadAll = () => {
        return [
          { value: "三全鲜食(北新泾店)", address: "长宁区新渔路144号" },
          {
            value: "Hot honey 首尔炸鸡(仙霞路)",
            address: "上海市长宁区淞虹路661号",
          },
          {
            value: "新旺角茶餐厅",
            address: "上海市普陀区真北路988号创邑金沙谷6号楼113",
          },
          { value: "泷千家(天山西路店)", address: "天山西路438号" },
          {
            value: "胖仙女纸杯蛋糕(上海凌空店)",
            address: "上海市长宁区金钟路968号1幢18号楼一层商铺18-101",
          },
          { value: "贡茶", address: "上海市长宁区金钟路633号" },
          {
            value: "豪大大香鸡排超级奶爸",
            address: "上海市嘉定区曹安公路曹安路1685号",
          },
          {
            value: "茶芝兰(奶茶,手抓饼)",
            address: "上海市普陀区同普路1435号",
          },
          { value: "十二泷町", address: "上海市北翟路1444弄81号B幢-107" },
          { value: "星移浓缩咖啡", address: "上海市嘉定区新郁路817号" },
          { value: "阿姨奶茶/豪大大", address: "嘉定区曹安路1611号" },
          { value: "新麦甜四季甜品炸鸡", address: "嘉定区曹安公路2383弄55号" },
          {
            value: "Monica摩托主题咖啡店",
            address: "嘉定区江桥镇曹安公路2409号1F,2383弄62号1F",
          },
          {
            value: "浮生若茶(凌空soho店)",
            address: "上海长宁区金钟路968号9号楼地下一层",
          },
          {
            value: "NONO JUICE  鲜榨果汁",
            address: "上海市长宁区天山西路119号",
          },
          { value: "CoCo都可(北新泾店)", address: "上海市长宁区仙霞西路" },
          {
            value: "快乐柠檬(神州智慧店)",
            address: "上海市长宁区天山西路567号1层R117号店铺",
          },
          {
            value: "Merci Paul cafe",
            address: "上海市普陀区光复西路丹巴路28弄6号楼819",
          },
          {
            value: "猫山王(西郊百联店)",
            address: "上海市长宁区仙霞西路88号第一层G05-F01-1-306",
          },
          { value: "枪会山", address: "上海市普陀区棕榈路" },
          { value: "纵食", address: "元丰天山花园(东门) 双流路267号" },
          { value: "钱记", address: "上海市长宁区天山西路" },
          { value: "壹杯加", address: "上海市长宁区通协路" },
          {
            value: "唦哇嘀咖",
            address: "上海市长宁区新泾镇金钟路999号2幢(B幢)第01层第1-02A单元",
          },
          { value: "爱茜茜里(西郊百联)", address: "长宁区仙霞西路88号1305室" },
          {
            value: "爱茜茜里(近铁广场)",
            address:
              "上海市普陀区真北路818号近铁城市广场北区地下二楼N-B2-O2-C商铺",
          },
          {
            value: "鲜果榨汁(金沙江路和美广店)",
            address: "普陀区金沙江路2239号金沙和美广场B1-10-6",
          },
          {
            value: "开心丽果(缤谷店)",
            address: "上海市长宁区威宁路天山路341号",
          },
          { value: "超级鸡车(丰庄路店)", address: "上海市嘉定区丰庄路240号" },
          { value: "妙生活果园(北新泾店)", address: "长宁区新渔路144号" },
          { value: "香宜度麻辣香锅", address: "长宁区淞虹路148号" },
          {
            value: "凡仔汉堡(老真北路店)",
            address: "上海市普陀区老真北路160号",
          },
          { value: "港式小铺", address: "上海市长宁区金钟路968号15楼15-105室" },
          { value: "蜀香源麻辣香锅(剑河路店)", address: "剑河路443-1" },
          { value: "北京饺子馆", address: "长宁区北新泾街道天山西路490-1号" },
          {
            value: "饭典*新简餐(凌空SOHO店)",
            address: "上海市长宁区金钟路968号9号楼地下一层9-83室",
          },
          {
            value: "焦耳·川式快餐(金钟路店)",
            address: "上海市金钟路633号地下一层甲部",
          },
          { value: "动力鸡车", address: "长宁区仙霞西路299弄3号101B" },
          { value: "浏阳蒸菜", address: "天山西路430号" },
          { value: "四海游龙(天山西路店)", address: "上海市长宁区天山西路" },
          {
            value: "樱花食堂(凌空店)",
            address: "上海市长宁区金钟路968号15楼15-105室",
          },
          { value: "壹分米客家传统调制米粉(天山店)", address: "天山西路428号" },
          {
            value: "福荣祥烧腊(平溪路店)",
            address: "上海市长宁区协和路福泉路255弄57-73号",
          },
          {
            value: "速记黄焖鸡米饭",
            address: "上海市长宁区北新泾街道金钟路180号1层01号摊位",
          },
          { value: "红辣椒麻辣烫", address: "上海市长宁区天山西路492号" },
          {
            value: "(小杨生煎)西郊百联餐厅",
            address: "长宁区仙霞西路88号百联2楼",
          },
          { value: "阳阳麻辣烫", address: "天山西路389号" },
          {
            value: "南拳妈妈龙虾盖浇饭",
            address: "普陀区金沙江路1699号鑫乐惠美食广场A13",
          },
        ]
      }
      const handleSelect = (item) => {
        console.log(item)
      }
      onMounted(() => {
        restaurants.value = loadAll()
      })
      return {
        restaurants,
        state1: ref(""),
        state2: ref(""),
        querySearch,
        createFilter,
        loadAll,
        handleSelect,
      }
    },
  })
</script>

自定义模板

可自定义输入建议的显示


从服务端搜索数据
远程搜索
使用#default自定义输入建议的模板。该 scope 的参数为item,表示当前输入建议对象。
<template>
  <el-autocomplete
  popper-class="my-autocomplete"
  v-model="state"
  :fetch-suggestions="querySearch"
  placeholder="请输入内容"
  @select="handleSelect"
>
  <template #suffix>
    <i class="el-icon-edit el-input__icon" @click="handleIconClick"> </i>
  </template>
  <template #default="{ item }">
    <div class="name">{{ item.value }}</div>
    <span class="addr">{{ item.address }}</span>
  </template>
</el-autocomplete>
</template>

<script>
  import { defineComponent, ref, onMounted } from "vue"

  export default defineComponent({
    setup() {
      const restaurants = ref([])

      const querySearch = (queryString, cb) => {
        var results = queryString
          ? restaurants.value.filter(createFilter(queryString))
          : restaurants.value
        // 调用 callback 返回建议列表的数据
        cb(results)
      }
      const createFilter = (queryString) => {
        return (restaurant) => {
          return (
            restaurant.value
              .toLowerCase()
              .indexOf(queryString.toLowerCase()) === 0
          )
        }
      }
      const loadAll = () => {
        return [
          { value: "三全鲜食(北新泾店)", address: "长宁区新渔路144号" },
          {
            value: "Hot honey 首尔炸鸡(仙霞路)",
            address: "上海市长宁区淞虹路661号",
          },
          {
            value: "新旺角茶餐厅",
            address: "上海市普陀区真北路988号创邑金沙谷6号楼113",
          },
          { value: "泷千家(天山西路店)", address: "天山西路438号" },
          {
            value: "胖仙女纸杯蛋糕(上海凌空店)",
            address: "上海市长宁区金钟路968号1幢18号楼一层商铺18-101",
          },
          { value: "贡茶", address: "上海市长宁区金钟路633号" },
          {
            value: "豪大大香鸡排超级奶爸",
            address: "上海市嘉定区曹安公路曹安路1685号",
          },
          {
            value: "茶芝兰(奶茶,手抓饼)",
            address: "上海市普陀区同普路1435号",
          },
          { value: "十二泷町", address: "上海市北翟路1444弄81号B幢-107" },
          { value: "星移浓缩咖啡", address: "上海市嘉定区新郁路817号" },
          { value: "阿姨奶茶/豪大大", address: "嘉定区曹安路1611号" },
          { value: "新麦甜四季甜品炸鸡", address: "嘉定区曹安公路2383弄55号" },
          {
            value: "Monica摩托主题咖啡店",
            address: "嘉定区江桥镇曹安公路2409号1F,2383弄62号1F",
          },
          {
            value: "浮生若茶(凌空soho店)",
            address: "上海长宁区金钟路968号9号楼地下一层",
          },
          {
            value: "NONO JUICE  鲜榨果汁",
            address: "上海市长宁区天山西路119号",
          },
          { value: "CoCo都可(北新泾店)", address: "上海市长宁区仙霞西路" },
          {
            value: "快乐柠檬(神州智慧店)",
            address: "上海市长宁区天山西路567号1层R117号店铺",
          },
          {
            value: "Merci Paul cafe",
            address: "上海市普陀区光复西路丹巴路28弄6号楼819",
          },
          {
            value: "猫山王(西郊百联店)",
            address: "上海市长宁区仙霞西路88号第一层G05-F01-1-306",
          },
          { value: "枪会山", address: "上海市普陀区棕榈路" },
          { value: "纵食", address: "元丰天山花园(东门) 双流路267号" },
          { value: "钱记", address: "上海市长宁区天山西路" },
          { value: "壹杯加", address: "上海市长宁区通协路" },
          {
            value: "唦哇嘀咖",
            address: "上海市长宁区新泾镇金钟路999号2幢(B幢)第01层第1-02A单元",
          },
          { value: "爱茜茜里(西郊百联)", address: "长宁区仙霞西路88号1305室" },
          {
            value: "爱茜茜里(近铁广场)",
            address:
              "上海市普陀区真北路818号近铁城市广场北区地下二楼N-B2-O2-C商铺",
          },
          {
            value: "鲜果榨汁(金沙江路和美广店)",
            address: "普陀区金沙江路2239号金沙和美广场B1-10-6",
          },
          {
            value: "开心丽果(缤谷店)",
            address: "上海市长宁区威宁路天山路341号",
          },
          { value: "超级鸡车(丰庄路店)", address: "上海市嘉定区丰庄路240号" },
          { value: "妙生活果园(北新泾店)", address: "长宁区新渔路144号" },
          { value: "香宜度麻辣香锅", address: "长宁区淞虹路148号" },
          {
            value: "凡仔汉堡(老真北路店)",
            address: "上海市普陀区老真北路160号",
          },
          { value: "港式小铺", address: "上海市长宁区金钟路968号15楼15-105室" },
          { value: "蜀香源麻辣香锅(剑河路店)", address: "剑河路443-1" },
          { value: "北京饺子馆", address: "长宁区北新泾街道天山西路490-1号" },
          {
            value: "饭典*新简餐(凌空SOHO店)",
            address: "上海市长宁区金钟路968号9号楼地下一层9-83室",
          },
          {
            value: "焦耳·川式快餐(金钟路店)",
            address: "上海市金钟路633号地下一层甲部",
          },
          { value: "动力鸡车", address: "长宁区仙霞西路299弄3号101B" },
          { value: "浏阳蒸菜", address: "天山西路430号" },
          { value: "四海游龙(天山西路店)", address: "上海市长宁区天山西路" },
          {
            value: "樱花食堂(凌空店)",
            address: "上海市长宁区金钟路968号15楼15-105室",
          },
          { value: "壹分米客家传统调制米粉(天山店)", address: "天山西路428号" },
          {
            value: "福荣祥烧腊(平溪路店)",
            address: "上海市长宁区协和路福泉路255弄57-73号",
          },
          {
            value: "速记黄焖鸡米饭",
            address: "上海市长宁区北新泾街道金钟路180号1层01号摊位",
          },
          { value: "红辣椒麻辣烫", address: "上海市长宁区天山西路492号" },
          {
            value: "(小杨生煎)西郊百联餐厅",
            address: "长宁区仙霞西路88号百联2楼",
          },
          { value: "阳阳麻辣烫", address: "天山西路389号" },
          {
            value: "南拳妈妈龙虾盖浇饭",
            address: "普陀区金沙江路1699号鑫乐惠美食广场A13",
          },
        ]
      }
      const handleSelect = (item) => {
        console.log(item)
      }

      const handleIconClick = (ev) => {
        console.log(ev)
      }

      onMounted(() => {
        restaurants.value = loadAll()
      })

      return {
        restaurants,
        state: ref(""),
        querySearch,
        createFilter,
        loadAll,
        handleSelect,
        handleIconClick,
      }
    },
  })
</script>
<style>
  .my-autocomplete li {
    line-height: normal;
    padding: 7px;
  }
  .my-autocomplete li .name {
    text-overflow: ellipsis;
    overflow: hidden;
  }
  .my-autocomplete li .addr {
    font-size: 12px;
    color: #b4b4b4;
  }
  .my-autocomplete li .highlighted .addr {
    color: #ddd;
  }
</style>

远程搜索

从服务端搜索数据


<template>
  <el-autocomplete
  v-model="state"
  :fetch-suggestions="querySearchAsync"
  placeholder="请输入内容"
  @select="handleSelect"
></el-autocomplete>
</template>

<script>
  import { defineComponent, ref, onMounted } from "vue"

  export default defineComponent({
    setup() {
      const restaurants = ref([])
      const loadAll = () => {
        return [
          { value: "三全鲜食(北新泾店)", address: "长宁区新渔路144号" },
          {
            value: "Hot honey 首尔炸鸡(仙霞路)",
            address: "上海市长宁区淞虹路661号",
          },
          {
            value: "新旺角茶餐厅",
            address: "上海市普陀区真北路988号创邑金沙谷6号楼113",
          },
          { value: "泷千家(天山西路店)", address: "天山西路438号" },
          {
            value: "胖仙女纸杯蛋糕(上海凌空店)",
            address: "上海市长宁区金钟路968号1幢18号楼一层商铺18-101",
          },
          { value: "贡茶", address: "上海市长宁区金钟路633号" },
          {
            value: "豪大大香鸡排超级奶爸",
            address: "上海市嘉定区曹安公路曹安路1685号",
          },
          {
            value: "茶芝兰(奶茶,手抓饼)",
            address: "上海市普陀区同普路1435号",
          },
          { value: "十二泷町", address: "上海市北翟路1444弄81号B幢-107" },
          { value: "星移浓缩咖啡", address: "上海市嘉定区新郁路817号" },
          { value: "阿姨奶茶/豪大大", address: "嘉定区曹安路1611号" },
          { value: "新麦甜四季甜品炸鸡", address: "嘉定区曹安公路2383弄55号" },
          {
            value: "Monica摩托主题咖啡店",
            address: "嘉定区江桥镇曹安公路2409号1F,2383弄62号1F",
          },
          {
            value: "浮生若茶(凌空soho店)",
            address: "上海长宁区金钟路968号9号楼地下一层",
          },
          {
            value: "NONO JUICE  鲜榨果汁",
            address: "上海市长宁区天山西路119号",
          },
          { value: "CoCo都可(北新泾店)", address: "上海市长宁区仙霞西路" },
          {
            value: "快乐柠檬(神州智慧店)",
            address: "上海市长宁区天山西路567号1层R117号店铺",
          },
          {
            value: "Merci Paul cafe",
            address: "上海市普陀区光复西路丹巴路28弄6号楼819",
          },
          {
            value: "猫山王(西郊百联店)",
            address: "上海市长宁区仙霞西路88号第一层G05-F01-1-306",
          },
          { value: "枪会山", address: "上海市普陀区棕榈路" },
          { value: "纵食", address: "元丰天山花园(东门) 双流路267号" },
          { value: "钱记", address: "上海市长宁区天山西路" },
          { value: "壹杯加", address: "上海市长宁区通协路" },
          {
            value: "唦哇嘀咖",
            address: "上海市长宁区新泾镇金钟路999号2幢(B幢)第01层第1-02A单元",
          },
          { value: "爱茜茜里(西郊百联)", address: "长宁区仙霞西路88号1305室" },
          {
            value: "爱茜茜里(近铁广场)",
            address:
              "上海市普陀区真北路818号近铁城市广场北区地下二楼N-B2-O2-C商铺",
          },
          {
            value: "鲜果榨汁(金沙江路和美广店)",
            address: "普陀区金沙江路2239号金沙和美广场B1-10-6",
          },
          {
            value: "开心丽果(缤谷店)",
            address: "上海市长宁区威宁路天山路341号",
          },
          { value: "超级鸡车(丰庄路店)", address: "上海市嘉定区丰庄路240号" },
          { value: "妙生活果园(北新泾店)", address: "长宁区新渔路144号" },
          { value: "香宜度麻辣香锅", address: "长宁区淞虹路148号" },
          {
            value: "凡仔汉堡(老真北路店)",
            address: "上海市普陀区老真北路160号",
          },
          { value: "港式小铺", address: "上海市长宁区金钟路968号15楼15-105室" },
          { value: "蜀香源麻辣香锅(剑河路店)", address: "剑河路443-1" },
          { value: "北京饺子馆", address: "长宁区北新泾街道天山西路490-1号" },
          {
            value: "饭典*新简餐(凌空SOHO店)",
            address: "上海市长宁区金钟路968号9号楼地下一层9-83室",
          },
          {
            value: "焦耳·川式快餐(金钟路店)",
            address: "上海市金钟路633号地下一层甲部",
          },
          { value: "动力鸡车", address: "长宁区仙霞西路299弄3号101B" },
          { value: "浏阳蒸菜", address: "天山西路430号" },
          { value: "四海游龙(天山西路店)", address: "上海市长宁区天山西路" },
          {
            value: "樱花食堂(凌空店)",
            address: "上海市长宁区金钟路968号15楼15-105室",
          },
          { value: "壹分米客家传统调制米粉(天山店)", address: "天山西路428号" },
          {
            value: "福荣祥烧腊(平溪路店)",
            address: "上海市长宁区协和路福泉路255弄57-73号",
          },
          {
            value: "速记黄焖鸡米饭",
            address: "上海市长宁区北新泾街道金钟路180号1层01号摊位",
          },
          { value: "红辣椒麻辣烫", address: "上海市长宁区天山西路492号" },
          {
            value: "(小杨生煎)西郊百联餐厅",
            address: "长宁区仙霞西路88号百联2楼",
          },
          { value: "阳阳麻辣烫", address: "天山西路389号" },
          {
            value: "南拳妈妈龙虾盖浇饭",
            address: "普陀区金沙江路1699号鑫乐惠美食广场A13",
          },
        ]
      }

      let timeout
      const querySearchAsync = (queryString, cb) => {
        var results = queryString
          ? restaurants.value.filter(createFilter(queryString))
          : restaurants.value

        clearTimeout(timeout)
        timeout = setTimeout(() => {
          cb(results)
        }, 3000 * Math.random())
      }
      const createFilter = (queryString) => {
        return (restaurant) => {
          return (
            restaurant.value
              .toLowerCase()
              .indexOf(queryString.toLowerCase()) === 0
          )
        }
      }
      const handleSelect = (item) => {
        console.log(item)
      }
      onMounted(() => {
        restaurants.value = loadAll()
      })
      return {
        restaurants,
        state: ref(""),
        querySearchAsync,
        createFilter,
        loadAll,
        handleSelect,
      }
    },
  })
</script>

输入长度限制


maxlength ​和 ​minlength ​属性,用来限制输入框的字符长度,其中字符长度是用 Javascript 的字符串长度统计的。对于类型为 text 或 textarea 的输入框,在使用 maxlength 属性限制最大输入长度的同时,可通过设置 show-word-limit 属性来展示字数统计。

<template>
  <el-input
  type="text"
  placeholder="请输入内容"
  v-model="text"
  maxlength="10"
  show-word-limit
>
</el-input>
<div style="margin: 20px 0;"></div>
<el-input
  type="textarea"
  placeholder="请输入内容"
  v-model="textarea"
  maxlength="30"
  show-word-limit
>
</el-input>
</template>

<script>
  import { defineComponent, ref } from "vue"

  export default defineComponent({
    setup() {
      return {
        text: ref(""),
        textarea: ref(""),
      }
    },
  })
</script>

Input Attributes

参数说明类型可选值默认值
type类型stringtext,textarea 和其他 原生 input 的 type 值text
model-value / v-model绑定值string / number
maxlength最大输入长度string / number
minlength原生属性,最小输入长度number
show-word-limit是否显示输入字数统计,只在 type = "text" 或 type = "textarea" 时有效booleanfalse
placeholder输入框占位文本string
clearable是否可清空booleanfalse
show-password是否显示切换密码图标booleanfalse
disabled禁用booleanfalse
size输入框尺寸,只在 type!="textarea" 时有效stringmedium / small / mini
prefix-icon输入框头部图标string
suffix-icon输入框尾部图标string
rows输入框行数,只对 type="textarea" 有效number2
autosize自适应内容高度,只对 type="textarea" 有效,可传入对象,如,{ minRows: 2, maxRows: 6 }boolean / objectfalse
autocomplete原生属性,自动补全stringoff
name原生属性string
readonly原生属性,是否只读booleanfalse
max原生属性,设置最大值
min原生属性,设置最小值
step原生属性,设置输入字段的合法数字间隔
resize控制是否能被用户缩放stringnone, both, horizontal, vertical
autofocus原生属性,自动获取焦点booleantrue, falsefalse
form原生属性string
label输入框关联的 label 文字string
tabindex输入框的 tabindexstring / number--
validate-event输入时是否触发表单的校验boolean-true
input-styleinput 元素或 textarea 元素的 styleobject-{}

Input Slots

name说明
prefix输入框头部内容,只对 type="text" 有效
suffix输入框尾部内容,只对 type="text" 有效
prepend输入框前置内容,只对 type="text" 有效
append输入框后置内容,只对 type="text" 有效

Input Events

事件名称说明回调参数
blur在 Input 失去焦点时触发(event: Event)
focus在 Input 获得焦点时触发(event: Event)
change仅在输入框失去焦点或用户按下回车时触发(value: string | number)
input在 Input 值改变时触发(value: string | number)
clear在点击由 clearable 属性生成的清空按钮时触发

Input Methods

方法名说明参数
focus使 input 获取焦点
blur使 input 失去焦点
select选中 input 中的文字

Autocomplete Attributes

参数说明类型可选值默认值
placeholder输入框占位文本string
disabled禁用booleanfalse
value-key输入建议对象中用于显示的键名stringvalue
model-value / v-model必填值,输入绑定值string
debounce获取输入建议的去抖延时number300
placement菜单弹出位置stringtop / top-start / top-end / bottom / bottom-start / bottom-endbottom-start
fetch-suggestions返回输入建议的方法,仅当你的输入建议数据 resolve 时,通过调用 callback(data:[]) 来返回它Function(queryString, callback)
popper-classAutocomplete 下拉列表的类名string
trigger-on-focus是否在输入框 focus 时显示建议列表booleantrue
name原生属性string
select-when-unmatched在输入没有任何匹配建议的情况下,按下回车是否触发 select 事件booleanfalse
label输入框关联的 label 文字string
prefix-icon输入框头部图标string
suffix-icon输入框尾部图标string
hide-loading是否隐藏远程加载时的加载图标booleanfalse
popper-append-to-body是否将下拉列表插入至 body 元素。在下拉列表的定位出现问题时,可将该属性设置为 falseboolean-false
highlight-first-item是否默认突出显示远程搜索建议中的第一项booleanfalse

Autocomplete Slots

name说明
prefix输入框头部内容
suffix输入框尾部内容
prepend输入框前置内容
append输入框后置内容

Autocomplete Scoped Slot

name说明
自定义输入建议,参数为 { item }

Autocomplete Events

事件名称说明回调参数
select点击选中建议项时触发选中建议项
change在 Input 值改变时触发(value: string | number)

Autocomplete Methods

方法名说明参数
focus使 input 获取焦点-


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