Angular : Get value of parameter in parent route

With the help of this article, the problem was solved.

For accessing the params in parent route, we need to use activeRoute.parent.params
instead of activeRoute.params

this.activatedRoute.parent.params.subscribe(
    (params) => 
    { 
                 console.log(params.accountid); 
     });

Also from this stackoverflow question , a solution to make all params (including parent route params) available to child routes was found.

This is done by including a configuration object with the paramsInheritanceStrategy set to always where we import RouterModule

eg :

import {RouterModule, ExtraOptions} from "@angular/router";

export const routingConfiguration: ExtraOptions = {
  paramsInheritanceStrategy: 'always'
};

export const Routing = RouterModule.forRoot(routes, routingConfiguration);

Now we can access both parent and child route params using activeRoute.params