Perform action in parent on child event click - node.js

Question

So I'm trying to perform some action on the parent component of the child component when a click event is fired in the child component. Currently I have a dynamic loader which is able to load different child components. The problem I have is that the #Output() is being emitted but the parent component doesn't seem to have any knowledge when this event is fired. Is there something I am missing?
child2.component.ts
import {Component, Injector, Output, EventEmitter} from '#angular/core';
#Component({
selector: 'hello-world',
template: `
<div>Hello World {{showNum}}</div>
<li (click)="childButtonClicked(false)"> </li>
`,
})
export class HelloWorldComponent {
showNum = 0;
#Output() childEvent = new EventEmitter<boolean>();
constructor(private injector: Injector) {
this.showNum = this.injector.get('showNum');
console.log("HelloWorldComponent");
}
childButtonClicked(agreed: boolean) {
this.childEvent.emit(agreed);
console.log("clicked");
}
}
child1.component.ts
import {Component, Injector, Output, EventEmitter} from '#angular/core';
#Component({
selector: 'world-hello',
template: `
<div>World Hello {{showNum}}</div>
<li (click)="childButtonClicked(false)"> </li>
`,
})
export class WorldHelloComponent {
showNum = 0;
#Output() childEvent = new EventEmitter<boolean>();
constructor(private injector: Injector) {
this.showNum = this.injector.get('showNum');
console.log("WorldHelloComponent");
}
childButtonClicked(agreed: boolean) {
this.childEvent.emit(agreed);
console.log("clicked");
}
}
dynamic.componentloader.ts
import {Component, Input, ViewContainerRef,ComponentRef, ViewChild, ReflectiveInjector, ComponentFactoryResolver} from '#angular/core';
#Component({
selector: 'dynamic-component',// Reference to the components must be here in order to dynamically create them
template: `
<div #dynamicComponentContainer></div>
`,
})
export class DynamicComponent {
currentComponent:any = null;
#ViewChild('dynamicComponentContainer', { read: ViewContainerRef }) dynamicComponentContainer: ViewContainerRef;
// component: Class for the component you want to create
// inputs: An object with key/value pairs mapped to input name/input value
#Input() set componentData(data: {component: any, inputs: any }) {
if (!data) {
return;
}
// Inputs need to be in the following format to be resolved properly
let inputProviders = Object.keys(data.inputs).map((inputName) => {return {provide: inputName, useValue: data.inputs[inputName]};});
let resolvedInputs = ReflectiveInjector.resolve(inputProviders);
// We create an injector out of the data we want to pass down and this components injector
let injector = ReflectiveInjector.fromResolvedProviders(resolvedInputs, this.dynamicComponentContainer.parentInjector);
// We create a factory out of the component we want to create
let factory = this.resolver.resolveComponentFactory(data.component);
// We create the component using the factory and the injector
let component = factory.create(injector);
// We insert the component into the dom container
this.dynamicComponentContainer.insert(component.hostView);
// We can destroy the old component is we like by calling destroy
if (this.currentComponent) {
this.currentComponent.destroy();
}
this.currentComponent = component;
}
constructor(private resolver: ComponentFactoryResolver) {
}
}
main.component.ts
import { Component, OnInit } from '#angular/core';
import { HelloWorldComponent } from '../../views/main/sidebar-views/comps/hello-world.component';
import { WorldHelloComponent } from '../../views/main/sidebar-views/comps/world-hello.component';
#Component({
selector: 'main-component',
template: require('./main.component.html')
})
export class MainComponent {
private pressed: boolean = false;
componentData:any = null;
constructor() { }
createHelloWorldComponent(){
this.componentData = {
component: HelloWorldComponent,
inputs: {
showNum: 9
}
};
}
createWorldHelloComponent(){
this.componentData = {
component: WorldHelloComponent,
inputs: {
showNum: 2
}
};
}
test(){
console.log("some click event");
}
};
main.component.html
<div>
<h2>Lets dynamically create some components!</h2>
<button (click)="createHelloWorldComponent()">Create Hello World</button>
<button (click)="createWorldHelloComponent()">Create World Hello</button>
<dynamic-component [componentData]="componentData" (childEvent)="test()"></dynamic-component>
</div>

Answer 1

Since you are passing a parameter to the EventEmitter, you need to change your event binding on your component selector in your template to this:
<dynamic-component [componentData]="componentData" (childEvent)="test($event)"></dynamic-component>
Also, don't forget to change function signature in your component to accept the parameter:
test(agreed: boolean){
console.log("some click event");
}
More info on official docs.