vue+elementUI实现全选功能

需要实现这样的功能,全选和判断是否是全选状态.因为样式的需要所以结构和elementUI案例结构有点区别

<div>
  <el-checkBox 
  :indeterminate="isIndeterminate" 
  v-model="checkAll" 
  @change="handleCheckAllChange"
  >全选</el-checkBox>
  <el-checkBox-group v-model="check" @change="handleCheckedCitiesChange">
    <el-row>
      <el-col :span="12" v-for="item in checkedList" :key="item.id" style="padding:30px">
        <el-checkBox :label="item.id">
          <span style="margin:0 120px 0 40px">{{item.name}}</span>
          <span>{{item.phone}}</span>
        </el-checkBox>
      </el-col>
    </el-row>
  </el-checkBox-group>
</div>

这个地方是模拟的数据

export default {
  data() {
    return {
      isIndeterminate: false,
      checkAll: false,
      check: [],
      checkedGameId: [],
      checkedList: [
        {
          id: 1,
          name: "张三",
          phone: "13554006475"
        },
        {
          id: 2,
          name: "李四",
          phone: "13514002475"
        },
        {
          id: 3,
          name: "王五",
          phone: "13558992475"
        }
      ]
    };
  },

这个地方是定义的方法

methods: {
    init() {
      for (let i = 0; i < this.checkedList.length; i++) {
        this.checkedGameId.push(this.checkedList[i].id);
      }
    },
    handleCheckAllChange(val) {
      this.check = val ? this.checkedGameId : [];
      this.isIndeterminate = false;
    },
    handleCheckedCitiesChange(value) {
      let checkedCount = value.length;
      this.checkAll = checkedCount === this.checkedList.length;
      this.isIndeterminate =
        checkedCount > 0 && checkedCount < this.checkedList.length;
    }
  },
  created() {
    this.init();
  }

有帮助的可以在下方留言