Navigate relative with Angular 2 Router (Version 3

问题:

How to navigate relative from /questions/123/step1 to /questions/123/step2 within a component using Router without string concatenation and specifying /questions/123/?

I've added an own answer below. Please feel free to suggest a better answer. ;-) I guess there are better approaches.

回答1:

After doing some more research I came across with

this.router.createUrlTree(['../step2'], {relativeTo: this.activatedRoute});

and

this.router.navigate(['../step2'], {relativeTo: this.activatedRoute});

First approach (Router.createUrlTree API) did not work for me, i.e. nothing happened. Second approach (Router.navigate API) works.

However, second approach uses NavigationExtras (second argument) which is documented with @experimental. Hopefully there won't be big changes with the next release again... and NavigationExtras will be stable.

Any other suggestions/approaches, please do not hesitate to answer to my question above.

Update 2016-10-12

There is another stackoverflow question as well:

• How do I navigate to a sibling route

Update 2016-10-24

Documentation:

• Routing & Navigation (Relative Navigation)

Update 2019-03-08

It seems that there were changes in Angular 7.1. There is an answer in another post how to solve it with Angular 7.1. Please refer to https://stackoverflow.com/a/38634440/42659.

回答2:

First, inject router & ActivatedRoute on constructor

constructor(private route:ActivatedRoute,private router:Router) { }

then use to Click Event:

onEditClick(){
        this.router.navigate(['edit'],{relativeTo:this.route});

You navigate to the expected page.In my scenario, I wanted to go recipe /1 to edit the recipe. http://localhost:4200/recipes/1/edit

回答3:

You may use below,

Assumption is questions is loaded into your primary router-outlet

  this.router.navigate([
      '/',
      { 
        outlets: {
          primary: [
              // below may be replaced with different variables
              'questions',
              '123',  
              'step2'
          ]
        }
      }
  ])

Hope this helps!!