What could be causing my Angular2 component to not properly use my template?

Question

What could be causing my Angular2 component to not properly use my template?

I have two components that I am working with.

The first component is:

import {Component} from 'angular2/angular2';
import {Navbar} from './navbar';
@Component({
    selector: 'app'
    template: `<div class="col-md-12">
    <navbar></navbar>
              </div>`
})
export class App {}

The second component is:

import {Component} from 'angular2/angular2';
@Component({
    selector: 'navbar',
    template:`<p>Navbar</p>`
 })
 export class Navbar {}

However, when I view the root (App) component, the navbar is not displaying. What could be causing this issue?

View Plunkr for code example

typescript angular

Answer 1

Answer №1

Make sure to include NavBar in the directives list:

@Component({
  selector: 'app'
  template: `<div class="col-md-12">
    <navbar></navbar>
    </div>`,
  directives: [ NavBar ]
})

Answer 2

Make sure to include NavBar in the directives list:

@Component({
  selector: 'app'
  template: `<div class="col-md-12">
    <navbar></navbar>
    </div>`,
  directives: [ NavBar ]
})

Answer 3

Answer №2

The necessity of defining directives and pipes within the @NgModule decorator in Angular2 depends on the release cycle being used. For example, in Angular2 RC6, support for including directives inside the @Component decorator was removed. Instead, directives and pipes must now be defined within @NgModule.

To implement this change, directives and pipes should be declared in app.module.ts instead:

// imports...
@NgModule({
   declarations: [
   AppComponent,
   NavbarComponent
],
...
... 
})
export class AppModule {}

Answer 4

The necessity of defining directives and pipes within the @NgModule decorator in Angular2 depends on the release cycle being used. For example, in Angular2 RC6, support for including directives inside the @Component decorator was removed. Instead, directives and pipes must now be defined within @NgModule.

To implement this change, directives and pipes should be declared in app.module.ts instead:

// imports...
@NgModule({
   declarations: [
   AppComponent,
   NavbarComponent
],
...
... 
})
export class AppModule {}

Answer 5

Answer №3

When working with Angular 2, it is necessary to specify the names of all components that you want to use within your main component. You can learn more about this process by visiting: Multiple Components

In response to your question, as advised by @Thierry:

@Component({
  selector: 'app'
  template: `<div class="col-md-12">
    <navbar></navbar>
    </div>`,
  directives: [ navbar ]
})

Answer 6

When working with Angular 2, it is necessary to specify the names of all components that you want to use within your main component. You can learn more about this process by visiting: Multiple Components

In response to your question, as advised by @Thierry:

@Component({
  selector: 'app'
  template: `<div class="col-md-12">
    <navbar></navbar>
    </div>`,
  directives: [ navbar ]
})

What could be causing my Angular2 component to not properly use my template?

Answer №1

Answer №2

Answer №3

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