I've tried many stackoverflow options like Load existing components dynamically Angular 2 Final Release.
What i want to do is get a html page with a ajax request and render/compile this template in my custom component.
I've figured out that angular2 has two deprecated components and that i have to use ComponentFactoryResolver.
In my old solution i could just set a '[innerHtml]' to render the HTML. Now i need a new solution.
Who can help me out?
page.component.ts
import { Component, ViewChild, ViewContainerRef, ComponentFactory, OnInit, ComponentFactoryResolver } from '@angular/core';
import { ActivatedRoute, Params } from '@angular/router';
@Component({
selector: "wd-page",
templateUrl: "/app/page/page.component.html",
providers: []
})
export class PageComponent implements OnInit {
// we need the viewcontainer ref, so explicitly define that, or we'll get back
// an element ref.
@ViewChild('dynamicChild', { read: ViewContainerRef })
private target: ViewContainerRef;
private page = {
Source: "<div><h2>Hello world</h2><one-of-my-components></one-of-my-components></div>"
}
constructor(
private vcRef: ViewContainerRef,
private resolver: ComponentFactoryResolver) { }
ngOnInit() {
//What code do i need here?
}
}
<div #dynamicChild></div>
<!-- Old implementation!
<div *ngIf="!showSource" [innerHTML]="page">
</div>
-->
If we go by the Angular definition, a factory component Angular is a base class for a factory that can create a component dynamically. Instantiate a factory for a given type of component with resolveComponentFactory(). Use the resulting ComponentFactory. create() method to create a component of that type.
This template uses typical HTML elements like <h2> and <p> . It also includes Angular template-syntax elements, *ngFor , {{hero.name}} , (click) , [hero] , and <app-hero-detail> . The template-syntax elements tell Angular how to render the HTML to the screen, using program logic and data.
Problem solved Thanks to Yurzui,
https://plnkr.co/edit/TAbupH4si62x10QZ7xuc?p=preview
The generic HTML outlete from a different post (Angular 2.1.0 create child component on the fly, dynamically) can be used to render templates with custom directives in them.
Don't forget to import a module with all the custom components that you want to render!
export function createComponentFactory(compiler: Compiler, metadata: Component): Promise<ComponentFactory<any>> {
const cmpClass = class DynamicComponent {};
const decoratedCmp = Component(metadata)(cmpClass);
// Import the module with required components here
@NgModule({ imports: [CommonModule, RouterModule, SharedModule], declarations: [decoratedCmp] })
class DynamicHtmlModule { }
return compiler.compileModuleAndAllComponentsAsync(DynamicHtmlModule)
.then((moduleWithComponentFactory: ModuleWithComponentFactories<any>) => {
return moduleWithComponentFactory.componentFactories.find(x => x.componentType === decoratedCmp);
});
}
I made tiny changes for using my own components (such as HomeComponent) at @Yurzui and @Linksonder 's solutions. https://plnkr.co/edit/27x0eg?p=preview
It's basically adding AppModule to DynamicHtmlModule as additional import inside of createComponentFactory().
@NgModule({ imports: [AppModule, CommonModule, RouterModule, SharedModule], declarations: [decoratedCmp] })
class DynamicHtmlModule { }
And exports our own components at AppModule
@NgModule({
...
exports: [HomeComponent, AboutComponent],
...
})
export class AppModule { }
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