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要给tree的data递归赋值disabled,发现无法生效

<el-tree
  :data="data3"
  show-checkbox
  node-key="id"
  :default-expanded-keys="[2, 3]"
  :default-checked-keys="[5]">
</el-tree>

<script>
  export default {
    data() {
      return {
        data3: [{
          id: 1,
          label: '一级 2',
          children: [{
            id: 3,
            label: '二级 2-1',
            children: [{
              id: 4,
              label: '三级 3-1-1'
            }, {
              id: 5,
              label: '三级 3-1-2',
              disabled: true
            }]
          }, {
            id: 2,
            label: '二级 2-2',
            disabled: true,
            children: [{
              id: 6,
              label: '三级 3-2-1'
            }, {
              id: 7,
              label: '三级 3-2-2',
              disabled: true
            }]
          }]
        }],
        defaultProps: {
          children: 'children',
          label: 'label'
        }
      };
    }
    mounted(){
        this.setDisabled(data3);//递归给数组禁止选中
    },
    methods:{
        setDisabled(obj){
            obj.forEach(item=>{
                item.disabled = true;
                this.setDisabled(item.children)
            })
        }
    }
  };
</script>

解决:通过this.$set(item,'disabled',true);

本文标签: 勾选elementtreedisabled