如果它与某人的问题重复,我很抱歉。但是我找不到我的问题的解决方案。
Angular 7. 我需要通过 将我的变量输入@Input
到 ng-container 中ngComponentOutlet
。正如文件所说,有一个选项可以通过Injector
. 如果它只是 a string
or也没关系number
。但是我有一点复杂的事情:如果我想在注入类时有更复杂的逻辑怎么办:例如绑定一个Observable<SomeModel>
我想从ngrx商店获取的?或者订阅它?
在这里,我遇到了以下问题:Cannot read property 'select' of undefined
。
@Injectable()
export class Greeter {
suffix$;
constructor(private store: Store<fromStore.State>) {
this.suffix$ = this.store.select(fromStore.getSuffix);
}
}
@Component({
selector: 'complete-component',
template: `Complete: {{ greeter.suffix$ | async }}`
})
export class CompleteComponent {
constructor(public greeter: Greeter) {
this.greeter.suffix$.subscribe(data => console.log('data', data));
// not working
}
}
@Component({
selector: 'ng-component-outlet-complete-example',
template: `
<ng-container *ngComponentOutlet="CompleteComponent;
injector: myInjector;"
})
export class NgTemplateOutletCompleteExample {
CompleteComponent = CompleteComponent;
myInjector: Injector;
constructor(injector: Injector) {
this.myInjector =
Injector.create({providers: [{provide: Greeter, deps: []}], parent: injector});
}
}
我究竟做错了什么?