Dynamic template in templatURL in angular2

Question

I have been using ng-include in angular 1 whenever I had to include a tamplate dynamically in the page.

Now how to acheive this in angular 2. I have tried searching and found these :

https://groups.google.com/forum/#!topic/angular/ROkKDHboWoA ,

https://github.com/angular/angular/issues/2753

can someone explain how to do this in angular2 as the link says ng-include is not included due some security reasons.

Or atleast how to use a veriable in templateUrl property so that the veriable value can be handled on server side to serve the template...

Answer 1

And as you can see in this issue on the Angular repo, most probably we won't get that directive. There has been a long discussion whether we need this directive or not, and if not provided how we can implement it by our self.

I tried to make a simple example of how it can be implemented.

@Component({
    selector: 'my-ng-include',
    template: '<div #myNgIncludeContent></div>'
})
export class MyNgInclude implements OnInit {

    @Input('src')
    private templateUrl: string;

    @ViewChild('myNgIncludeContent', { read: ViewContainerRef })
    protected contentTarget: ViewContainerRef;

    constructor(private componentResolver: ComponentResolver) {}

    ngOnInit() {
        var dynamicComponent = this.createContentComponent(this.templateUrl);
        this.componentResolver.resolveComponent(dynamicComponent)
            .then((factory: any) => this.contentTarget.createComponent(factory));
    }

    createContentComponent(templateUrl) {
        @Component({
            selector: 'my-ng-include-content',
            templateUrl: templateUrl,
            directives: FORM_DIRECTIVES,
        })
        class MyNgIncludeContent {}
        return MyNgIncludeContent ;
    }
}

For a demo check this Plunker.

Answer 2

Actually angular 2 has not featured this in the current build. Also as per the links added, I don't think this feature will be included.

A piece of javascript to dynamically add template using ajax call may be used.

Or possibly in future a dynamic template loader library will be available for use.