element/examples/docs/select.md
2016-08-22 14:07:53 +08:00

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基本用法

<template>
<el-select v-model="value">
  <el-option
    v-for="item in options"
    :label="item.label"
    :value="item.value">
  </el-option>
</el-select>
</template>

<script>
  export default {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value: ''
      }
    }
  }
</script>

有禁用选项

<template>
  <el-select v-model="value2">
    <el-option
      v-for="item in options2"
      :label="item.label"
      :value="item.value"
      :disabled="item.disabled">
    </el-option>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        options2: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶',
          disabled: true
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value2: ''
      }
    }
  }
</script>

可清空单选

<template>
<el-select v-model="value3" clearable>
  <el-option
    v-for="item in options"
    :label="item.label"
    :value="item.value">
  </el-option>
</el-select>
</template>

<script>
  export default {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value3: ''
      }
    }
  }
</script>

可搜索

<template>
  <el-select v-model="value4" filterable>
    <el-option
      v-for="item in options"
      :label="item.label"
      :value="item.value">
    </el-option>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value4: ''
      }
    }
  }
</script>

分组

{{ item.label }} {{ item.value }}
<template>
  <el-select v-model="value5">
    <el-option-group v-for="group in options3" :label="group.label">
      <el-option
        v-for="item in group.options"
        :label="item.label"
        :value="item.value">
      </el-option>
    </el-option-group>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        options3: [{
          label: '热门城市',
          options: [{
            value: 'Shanghai',
            label: '上海'
          }, {
            value: 'Beijing',
            label: '北京'
          }]
        }, {
          label: '城市名',
          options: [{
            value: 'Chengdu',
            label: '成都'
          }, {
            value: 'Shenzhen',
            label: '深圳'
          }, {
            value: 'Guangzhou',
            label: '广州'
          }, {
            value: 'Dalian',
            label: '大连'
          }]
        }],
        value9: ''
      }
    }
  }
</script>

自定义模板

{{ item.label }} {{ item.value }}
<template>
  <el-select v-model="value6">
    <el-option
      v-for="item in cities"
      :label="item.label"
      :value="item.value">
      <span style="float: left">{{ item.label }}</span>
      <span style="float: right; color: #8492a6; font-size: 13px">{{ item.value }}</span>
    </el-option>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        cities: [{
          value: 'Beijing',
          label: '北京'
        }, {
          value: 'Shanghai',
          label: '上海'
        }, {
          value: 'Nanjing',
          label: '南京'
        }, {
          value: 'Chengdu',
          label: '成都'
        }, {
          value: 'Shenzhen',
          label: '深圳'
        }, {
          value: 'Guangzhou',
          label: '广州'
        }],
        value6: ''
      }
    }
  }
</script>

基础多选

<template>
  <el-select v-model="value7" multiple>
    <el-option
      v-for="item in options"
      :label="item.label"
      :value="item.value">
    </el-option>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        options: [{
          value: '选项1',
          label: '黄金糕'
        }, {
          value: '选项2',
          label: '双皮奶'
        }, {
          value: '选项3',
          label: '蚵仔煎'
        }, {
          value: '选项4',
          label: '龙须面'
        }, {
          value: '选项5',
          label: '北京烤鸭'
        }],
        value7: []
      }
    }
  }
</script>

服务端搜索

<template>
  <el-select
    v-model="value8"
    multiple
    filterable
    remote
    placeholder="请输入关键词"
    :remote-method="remoteMethod"
    :loading="loading">
    <el-option
      v-for="item in options4"
      :key="item.value"
      :label="item.label"
      :value="item.value">
    </el-option>
  </el-select>
</template>

<script>
  export default {
    data() {
      return {
        options4: [],
        value8: [],
        list: [],
        loading: false,
        states: ["Alabama", "Alaska", "Arizona", "Arkansas", "California", "Colorado", "Connecticut", "Delaware", "Florida", "Georgia", "Hawaii", "Idaho", "Illinois", "Indiana", "Iowa", "Kansas", "Kentucky", "Louisiana", "Maine", "Maryland", "Massachusetts", "Michigan", "Minnesota", "Mississippi", "Missouri", "Montana", "Nebraska", "Nevada", "New Hampshire", "New Jersey", "New Mexico", "New York", "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Oregon", "Pennsylvania", "Rhode Island", "South Carolina", "South Dakota", "Tennessee", "Texas", "Utah", "Vermont", "Virginia", "Washington", "West Virginia", "Wisconsin", "Wyoming"]
      }
    },
    mounted() {
      this.list = this.states.map(item => { return { value: item, label: item }; });
    },
    methods: {
      remoteMethod(query) {
        if (query !== '') {
          this.loading = true;
          setTimeout(() => {
            this.loading = false;
            this.options4 = this.list.filter(item => item.label.toLowerCase().indexOf(query.toLowerCase()) > -1);
          }, 200);
        } else {
          this.options4 = [];
        }
      }
    }
  }
</script>

API

el-select

参数 说明 类型 可选值 默认值
value select 目前选中的值 string/number/array
multiple 是否多选 boolean false
disabled 是否禁用 boolean false
clearable 单选时是否可以清空选项 boolean false
width select 的宽度 number 180单选/220多选
dropdown-width 下拉菜单的宽度,不设置则与输入框同宽 number
name select input 的 name 属性 string
placeholder 占位符 string '请选择'
filterable 是否可搜索 boolean false
filter-method 自定义过滤方法 function
remote 是否为远程搜索 boolean false
remote-method 远程搜索方法,当搜索关键字变化时会调用该方法,参数为目前的搜索关键字 function
loading 是否正在从远程获取数据 boolean false

el-select 事件

事件名称 说明 回调参数
change value 发生变化 value

el-option-group

参数 说明 类型 可选值 默认值
label 分组的标签 string
disabled 是否将该分组下所有选项置为禁用 boolean false

el-option

参数 说明 类型 可选值 默认值
value 选项的值 string/number
label 选项的标签,若不设置则默认与 value 相同 string/number
disabled 是否禁用该选项 boolean false
selected 选项是否被初始选中 boolean false