ng-alain sf组件 select的enum赋值的问题

Question

list = [];

ngAfterViewInit() {
    this.getOpenApiData('user', {}).subscribe((res) => {
        this.list = res.list;
    });
 }

schema = {
    properties: {
        name: {
            type: 'string',
            title: '名字',
            enum: this.list,
            default: 1 ,
            ui: {
                widget: 'select'
            }
        },

    },
    required: [],
    ui: {
        grid: {
            span: 12
        }
    }
  };

为什么在ngAfterViewInit给list赋值，enum获取不到呢？ 怎么才能让enum获取新的list呢