Solved myself. Done some small structural changes also. Route from Component1 to Component2 is done by a single <router-outlet>. Component2 to Comonent3 and Component4 is done by multiple <router-outlet name= "xxxxx"> The resulting contents are :
Component1.html
<nav>
<a routerLink="/two" class="dash-item">Go to 2</a>
</nav>
<router-outlet></router-outlet>
Component2.html
<a [routerLink]="['/two', {outlets: {'nameThree': ['three']}}]">In Two...Go to 3 ... </a>
<a [routerLink]="['/two', {outlets: {'nameFour': ['four']}}]"> In Two...Go to 4 ...</a>
<router-outlet name="nameThree"></router-outlet>
<router-outlet name="nameFour"></router-outlet>
The '/two' represents the parent component and ['three']and ['four'] represents the link to the respective children of component2
. Component3.html and Component4.html are the same as in the question.
router.module.ts
const routes: Routes = [
{
path: '',
redirectTo: 'one',
pathMatch: 'full'
},
{
path: 'two',
component: ClassTwo, children: [
{
path: 'three',
component: ClassThree,
outlet: 'nameThree'
},
{
path: 'four',
component: ClassFour,
outlet: 'nameFour'
}
]
},];