Angular 4 execute function from another component code example
Example: Angular 4 execute function from another component
//Angular 4 execute function from another component
didn't get time to test it but similar solution worked for me. the code created for your need.
Create a service like this
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import { Subject } from 'rxjs/Subject';
@Injectable()
export class MessageService {
private _listners = new Subject<any>();
listen(): Observable<any> {
return this._listners.asObservable();
}
filter(filterBy: string) {
this._listners.next(filterBy);
}
}
then implement in your header component like this
// header.component.ts
@Component({
selector: 'header',
templateUrl: `
<section class="container">
<button (click)="clickFilter()">Open filter</button>
</section>
`
})
export class HeaderComponent {
@Output() onFilter: EventEmitter = new EventEmitter();
constructor(private _messageService: MessageService){}
clickFilter():void {
// this.onFilter.emit('Register click');
this._messageService.filter('Register click');
}
}
then use in your store component like this
@Component({
selector: 'store',
template: `<article class="card">
Test
</article>`
})
export class StoreComponent {
constructor(private _messageService: MessageService){
this._messageService.listen().subscribe((m:any) => {
console.log(m);
this.onFilterClick(m);
})
}
onFilterClick(event) {
console.log('Fire onFilterClick: ', event);
}
}
The concept is that you can use observable in a service and subscribe in the component where you want it (store.component) and can send event from anywhere in the app like i did in the header.component
I hope it will help you