Angular2-无法在其他组件中使用指令

Question

I have an angular app with following app module.

import {BrowserModule} from '@angular/platform-browser';
import {NgModule} from '@angular/core';
import {LocationStrategy, HashLocationStrategy} from '@angular/common';

import {AppComponent} from './app.component';


// Import components
import {
  AppAsideComponent,
  AppBreadcrumbsComponent,
  AppFooterComponent,
  AppHeaderComponent,
  AppSidebarComponent,
  AppSidebarFooterComponent,
  AppSidebarFormComponent,
  AppSidebarHeaderComponent,
  AppSidebarMinimizerComponent,
  APP_SIDEBAR_NAV
} from './components';

const APP_COMPONENTS = [
  AppAsideComponent,
  AppBreadcrumbsComponent,
  AppFooterComponent,
  AppHeaderComponent,
  AppSidebarComponent,
  AppSidebarFooterComponent,
  AppSidebarFormComponent,
  AppSidebarHeaderComponent,
  AppSidebarMinimizerComponent,
  APP_SIDEBAR_NAV
]

// Import directives
import {
  AsideToggleDirective,
  NAV_DROPDOWN_DIRECTIVES,
  ReplaceDirective,
  SIDEBAR_TOGGLE_DIRECTIVES
} from './directives';

const APP_DIRECTIVES = [
  AsideToggleDirective,
  NAV_DROPDOWN_DIRECTIVES,
  ReplaceDirective,
  SIDEBAR_TOGGLE_DIRECTIVES
]

import {AppRoutingModule} from './app.routing';

@NgModule({
  imports: [
    AppRoutingModule,
    BrowserModule
  ],
  declarations: [
    AppComponent,
    ...APP_CONTAINERS,
    ...APP_COMPONENTS,
    ...APP_DIRECTIVES
  ],
  exports: [],
  providers: [{
    provide: LocationStrategy,
    useClass: HashLocationStrategy
  }],
  bootstrap: [AppComponent]
})
export class AppModule {
}

I want to use the directive AsideToggleDirective in the component of another module which is a child of the main AppModule . I am able to use it properly in the components mentioned in const APP_COMPONENTS , but it does not work for another module components.

What am I missing here?

PS The other modules are defined by routes

Answer 1

只需将AsideToggleDirective添加到导出数组即可：)