How to load component dynamically using component name in angular2?

Question

I am currently loading angular components dynamically in my application using following code.

export class WizardTabCo         


        

Answer 1

i user anthor way to done this, may be helpful for you.

1.first defined a class which use as name map componet and class RegisterNMC for moduleName map nmc

export class NameMapComponent {
  private components = new Map();

  constructor(components: Component[]) {
    for (let i = 0; i < components.length; i++) {
      const component = components[i];
      this.components.set(component.name, component);
    }
  }

  getComponent(name: string): Component | undefined {
    return this.components.get(name);
  }

  setComponent(component: Component):void {
    const name = component.name;
    this.components.set(name, component);
  }

  getAllComponent(): { [key: string]: Component }[] {
    const components: { [key: string]: Component }[] = [];
    for (const [key, value] of this.components) {
      components.push({[key]: value});
    }
    return components;
  }
}

export class RegisterNMC {
  private static nmc = new Map();

  static setNmc(name: string, value: NameMapComponent) {
    this.nmc.set(name, value);
  }

  static getNmc(name: string): NameMapComponent | undefined {
    return this.nmc.get(name);
  }

}

type Component = new (...args: any[]) => any;

2. in the ngMgdule file,you must put the components which be dynamically load in entryCompoent.

   const registerComponents = [WillBeCreateComponent]; const nmc = new NameMapComponent(registerComponents); RegisterNMC.setNmc('component-demo', nmc);

3.in the container component

@ViewChild('insert', {read: ViewContainerRef, static: true}) insert: ViewContainerRef;

  nmc: NameMapComponent;
  remoteData = [
    {name: 'WillBeCreateComponent', options: '', pos: ''},
  ];

  constructor(
    private resolve: ComponentFactoryResolver,
  ) {
    this.nmc = RegisterNMC.getNmc('component-demo');

  }

  ngOnInit() {
    of(this.remoteData).subscribe(data => {
      data.forEach(d => {
        const component = this.nmc.getComponent(d.name);
        const componentFactory = this.resolve.resolveComponentFactory(component);
        this.insert.createComponent(componentFactory);
      });
    });
  }

it's fine, hopefully can help you ^_^!