Angular2(rc4)-检查父组件中的活动子路由

问题描述

我正在尝试检查父级组件中的活动子路由，但遇到了困难.

I am trying to check the active child route in a parent component, but I am having difficulties with it.

我尝试通过执行以下操作来订阅ActivatedRoute:

I have tried to subscribe to the ActivatedRoute by doing something like this:

class ParentComponent {
    constructor(private _route:ActivatedRoute) {}

    ngOnInit() {
        this._route.data.subscribe(value => console.log(value)});
    }
}

我已经阅读了很多有关Stack Overflow的线程，但是找不到解决方案来检查父组件的子路由并对其进行更新.

I have read a lot of threads on Stack Overflow, but can't find a solution that checks and gets updated regarding the child routes of a parent component.

有什么想法吗?

推荐答案

您可以使用以下代码段访问活动的子路由

You can access active child route using below code snippet

constructor(private router:Router, private currentActivatedRoute:ActivatedRoute)
// this should be called in ngOnInit
    var state = this.router.routerState
    var children = state.children(this.currentActivatedRoute)

RouterState ，树

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