I am attempting to dynamically add a CSS class to a component right after its creation by utilizing ViewContainerRef and ComponentFactoryResolver. My goal is to determine the class based on which other Components have already been added to myViewContainerRef.
export class ContainerComponent {
@ViewChild('myContainerRef') myContainerRef: ViewContainerRef
constructor(private factoryResolver: ComponentFactoryResolver,
private renderer: Renderer2) {}
addComponent() {
const componentFactory = this.factoryResolver.resolveComponentFactory(SomeBaseComponent)
const newComponent = this.myContainerRef.createComponent(componentFactory)
// Successfully adding SomeBaseComponent to myContainerRef
// Trying to add CSS class to the newly created component
// The following statements do not apply any styles
if( someLogic()) {
this.renderer.addClass(newComponent.location.nativeElement, 'my-css-class')
this.renderer.addClass(newComponent.el.nativeElement, 'my-css-class')
this.renderer.setStyle(newComponent.el.nativeElement, 'background', 'yellow')
}
}
}
export class SomeBaseComponent {
constructor(public el: ElementRef) {}
}
Is there a more effective approach to programmatically adding styles? Is there something else I can inject into SomeBaseComponent to enable setting the desired styles at this stage, or should I use flags on newComponent.instance and let the base component manage its own style settings?