javascript - 如何从 ngx-treeview 获取父节点 ID

Question

我将ngx-dropdown treeview用于树下拉结构。当我在下拉列表中选择时，只会获取子 ID。

反应就像

    [
    {id:1,categoryName:Test,subCategory:[{id:2,categoryName:child1},{id:3,categoryName:child2}]}
    {id:4,categoryName:Test2,subCategory:[{id:5,categoryName:child3},{id:6,categoryName:child4}]}
    ]

    <ngx-dropdown-treeview
     [items]="items"
     [config]="config"
     (selectedChange)="onSelectedChange($event)"
     (filterChange)="onFilterChange($event)"
     >
    </ngx-dropdown-treeview>

    onSelectedChange(event){
    console.log(event)
    }

如果我们选择父类别测试，那么响应会像[2,3].
有没有办法获得id父类别的？喜欢[1,2,3]