[JavaScript知识库]创建具有单选框的el-table列表

1 创建具有复选框的列表行

在elementUI官网中，对于创建具有复选框的列表的方式进行了比较详细的阐述：
实现多选非常简单: 手动添加一个el-table-column，设type属性为selection即可；默认情况下若内容过多会折行显示，若需要单行显示可以使用show-overflow-tooltip属性，它接受一个Boolean，为true时多余的内容会在 hover 时以 tooltip 的形式显示出来。（摘自elementUI官网）

<template>
  <el-table
    ref="multipleTable"
    :data="tableData"
    tooltip-effect="dark"
    style="width: 100%"
    @selection-change="handleSelectionChange">
    <el-table-column
      type="selection"
      width="55">
    </el-table-column>
    <el-table-column
      label="日期"
      width="120">
      <template slot-scope="scope">{{ scope.row.date }}</template>
    </el-table-column>
    <el-table-column
      prop="name"
      label="姓名"
      width="120">
    </el-table-column>
    <el-table-column
      prop="address"
      label="地址"
      show-overflow-tooltip>
    </el-table-column>
  </el-table>
  <div style="margin-top: 20px">
    <el-button @click="toggleSelection([tableData[1], tableData[2]])">切换第二、第三行的选中状态</el-button>
    <el-button @click="toggleSelection()">取消选择</el-button>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        tableData: [{
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-08',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-06',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-07',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        multipleSelection: []
      }
    },

    methods: {
      toggleSelection(rows) {
        if (rows) {
          rows.forEach(row => {
            this.$refs.multipleTable.toggleRowSelection(row);
          });
        } else {
          this.$refs.multipleTable.clearSelection();
        }
      },
      handleSelectionChange(val) {
        this.multipleSelection = val;
      }
    }
  }
</script>

显示结果：

2 实现具有单选框的列表

直接添加一列单选框

<template>
  <div>
    <el-table
      ref="multipleTable"
      :data="tableData"
      tooltip-effect="dark"
      style="width: 50%;margin: 0 auto;">
      <el-table-column label="选择" width="65">
        <template slot-scope="scope">
          <el-radio v-model="radio" :label='scope.$index'></el-radio>
        </template>
      </el-table-column>
      <el-table-column label="日期" width="120">
        <template slot-scope="scope">{{ scope.row.date }}</template>
      </el-table-column>
      <el-table-column prop="name" label="姓名" width="120"></el-table-column>
      <el-table-column prop="address" label="地址" show-overflow-tooltip></el-table-column>
    </el-table>

  </div>

</template>

<script>
export default {
  data() {
    return {
      radio:"",
      tableData: [{
        date: '2016-05-03',
        name: '王小虎1',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-02',
        name: '王小虎2',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-04',
        name: '王小虎3',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-01',
        name: '王小虎4',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-08',
        name: '王小虎5',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-06',
        name: '王小虎6',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-07',
        name: '王小虎7',
        address: '上海市普陀区金沙江路 1518 弄'
      }],
      templateSelection: []
    }
  },
  methods: {
    getCurrentRow(row){ //获取选中数据this.templateSelection = row;
    },
  }
}
</script>

运行结果：

上述样式中单选框后面具有编号，实际上并不令人满意
解决方案：直接利用一个空的div来占据应该控制标签内容的位置

<template>
  <div>
    <el-table
      ref="multipleTable"
      :data="tableData"
      tooltip-effect="dark"
      style="width: 50%;margin: 0 auto;">
      <el-table-column label="选择" width="65">
        <template slot-scope="scope">
          <el-radio v-model="radio" :label='scope.$index'><div></div></el-radio>
        </template>
      </el-table-column>
      <el-table-column label="日期" width="120">
        <template slot-scope="scope">{{ scope.row.date }}</template>
      </el-table-column>
      <el-table-column prop="name" label="姓名" width="120"></el-table-column>
      <el-table-column prop="address" label="地址" show-overflow-tooltip></el-table-column>
    </el-table>

  </div>

</template>

<script>
export default {
  data() {
    return {
      radio:"",
      tableData: [{
        date: '2016-05-03',
        name: '王小虎1',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-02',
        name: '王小虎2',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-04',
        name: '王小虎3',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-01',
        name: '王小虎4',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-08',
        name: '王小虎5',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-06',
        name: '王小虎6',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-07',
        name: '王小虎7',
        address: '上海市普陀区金沙江路 1518 弄'
      }],
      templateSelection: []
    }
  },
  methods: {
    getCurrentRow(row){ //获取选中数据this.templateSelection = row;
    },
  }
}
</script>

运行结果：