如何检查子路由器是否有效,在角度4中显示状态true或false,
现在我正在使用:/ * @ angular / cli:1.4.4节点:8.6.0打字稿:2.3.4 @ angular / router:4.4.4 * /
我的父路线是:
const routes:Routes=[
{
path: '', component: SummaryOfFindingsComponent,
children:[
{
path:'data-time-frame', component: DataTimeFrameComponent
},
{
path:'email-address', component: EmailAddressesComponent
},
{
path:'repair-orders', component: RepairOrdersComponent
},
{
path:'total-records', component:TotalRecordsComponent
},
{
path:'unique-households', component: UniqueHouseholdsComponent
},
{
path:'unique-vins', component: UniqueVinsComponent
}
]
}
]
父组件是:
export class SummaryOfFindingsComponent implements OnInit {
isUserSelected;
constructor() { this.isUserSelected=false; }
ngOnInit() { }
isUserItemSelect(){
this.isUserSelected=true;
}
}
2 回答
导入您的父组件.ts
和生命周期钩子ngOnInit()并创建ActivatedRoute的Refarence
并在这里写入ngOnInit函数中的一些代码..
注意:此代码正在运行我的应用程序(谢谢)
这是一种观察Observable中儿童的方法......