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javascript - Angular2: Creating child components programmatically

Question

How to create child components inside a parent component and display them in the view afterwards using Angular2? How to make sure the injectables are injected correctly into the child components?

Example

import {Component, View, bootstrap} from 'angular2/angular2';
import {ChildComponent} from './ChildComponent';

@Component({
    selector: 'parent'
})
@View({
  template: `
    <div>
      <h1>the children:</h1>
      <!-- ??? three child views shall be inserted here ??? -->
    </div>`,
  directives: [ChildComponent]
})
class ParentComponent {

        children: ChildComponent[];

        constructor() {
            // when creating the children, their constructors
            // shall still be called with the injectables.
            // E.g. constructor(childName:string, additionalInjectable:SomeInjectable)
            children.push(new ChildComponent("Child A"));
            children.push(new ChildComponent("Child B"));
            children.push(new ChildComponent("Child C"));
            // How to create the components correctly?
        }
}
bootstrap(ParentComponent);

Edit

I found the DynamicComponentLoader in the API docs preview. But I get the following error when following the example: There is no dynamic component directive at element 0

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1 Answer

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This is generally not the approach I would take. Instead I would rely on databinding against an array that will render out more child components as objects are added to the backing array. Essentially child components wrapped in an ng-for

I have an example here that is similar in that it renders a dynamic list of children. Not 100% the same, but seems like the concept is still the same:

http://www.syntaxsuccess.com/viewarticle/recursive-treeview-in-angular-2.0


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