Trigger another button click from md-button Angular Material

Question

I have a page (say a parent page) that contain MdDialog component. Inside the dialog window, I have set a md-button. Can this md-button trigger the parent page button's function on click?

Answer 1

Yes, you can use a subject to trigger an event. Use a shared service for emitting and subscribing to the subject.

Define a shared.service like this:

import {Injectable } from '@angular/core';
import { Subject } from 'rxjs';

@Injectable()
export class SharedService{
   public triggerParentMethod: Subject<boolean> = new Subject<boolean>();
}

In your ParentComponent, subscribe to the triggerParentMethod in constructor:

constructor(private sharedService:SharedService,public dialog: MdDialog){
      this.sharedService.triggerParentMethod.subscribe( value =>{
        if(value == true){
          // Call some method here or some piece of code
          console.log('called from dialog');
        }
      });
    }

Emit triggerParentMethod from your dialog:

this.sharedService.triggerParentMethod.next(true);  

Complete working demo.