I want to pass a value with url using routerLink. And read that value on another page. Like I have product list. On select of first record the id of that record pass to product detail page. After read that productId I want to show detail of that product.
So How can I pass and get the parameter?
I'm assuming you have some code like this:
{ path: 'product/:id', component: ProductDetailComponent }
in ProductList template
<a [routerLink]="['/product', id]">Home</a>
or
<a [routerLink]="['/product', 5]">Home</a>
where id is a variable, maybe you got it in a loop.
in ProductDetailComponent:
constructor(
private route: ActivatedRoute,
private router: Router
) {}
ngOnInit() {
this.route.params
// (+) converts string 'id' to a number
.switchMap((params: Params) => this.yourProductService.getProductById(+params['id']))
.subscribe((product) => this.product = product);
}
Router document: https://angular.io/docs/ts/latest/guide/router.html
Use routerLink on your a tag for passing it by url.
[routerLink]="['yourRouteHere', {'paramKey': paramValue}]
To get it you need to use ActivatedRoute service. Inject it into your component and use it's subscribe method. Here my route is the injected service
this.route.params.subscribe(params => {
const id = Number.parseInt(params['paramKey']);
}
If you want to get parameters from the route segment use .params, else if you want from query string, use .queryParams
[routerLink]="['yourRouteHere', {'paramKey': {'key':'value'}}]
Try this:
Step-1: In routing module
{ path: 'product/:id', component: ProductDetailComponent }
Step-2: Send the value to routing
<a [routerLink]="['/product', id]">Home</a> //say, id=5
Step-3: Read the value in ProductDetailComponent
First inject ActivatedRoute from '@angular/router and say route is the injected service. Use the below code inside ngOnInit() method to read it.
id = this.route.snapshot.paramMap.get('id');
- Suppose your url is http://mit.edu/dashboard and desired result is http://mit.edu/dashboard/user?id=1 then use below code
<a [routerLink]="['user']" [queryParams]="{id: 1}" </a>
- Suppose your url is http://mit.edu/dashboard and your desired result is http://mit.edu/user?id=1 then use below code ["Difference is /Dashobard" missing here from url]
<a [routerLink]="['/user']" [queryParams]="{id: 1}" </a>
you can use this in .html
[routerLink]="['/trips/display/' + item.trip, {'paramKey': 'application'}]"
and in .ts you can use this to recover the params
this.id = this.route.snapshot.params['id'];
const param = this.route.snapshot.params['paramKey'];
