Collapse

<p>
  <button type="button" class="btn btn-outline-primary" [ngClass]="{active:!isCollapsed}" (click)="isCollapsed = !isCollapsed"
          [attr.aria-expanded]="!isCollapsed" aria-controls="collapseExample">
    {{(isCollapsed) ? 'Expand' : 'Collapse'}}
  </button>
</p>
<div id="collapseExample" [ngbCollapse]="isCollapsed">
  <div class="card">
    <div class="card-body">
      You can collapse this card by clicking Toggle
    </div>
  </div>
</div>

import {Component} from '@angular/core';
​
@Component({
  selector: 'app-ngbd-collapse-basic',
  templateUrl: './collapse-basic.html'
})
export class NgbdCollapseBasic {
  public isCollapsed = false;
}
​

<p class="mb-0">
  <a class="btn btn-primary mr-2 mb-2" href="#multiCollapseExample1" (click)="collapsedWithAnchor($event)"
     role="button"
     [attr.aria-expanded]="!multiple.option1" aria-controls="multiCollapseExample1">First Element</a>
​
  <button class="btn btn-primary mr-2 mb-2" type="button" (click)="multiple.option2 = !multiple.option2"
          [attr.aria-expanded]="!multiple.option2" aria-controls="multiCollapseExample2">Second Element
  </button>
​
  <button class="btn btn-primary mr-2 mb-2" type="button" (click)="toggleCollapsed($event)"
          aria-controls="multiCollapseExample1 multiCollapseExample2">Toggle both elements
  </button>
</p>
<div class="row">
  <div class="col">
    <div class="multi-collapse" id="multiCollapseExample1" [ngbCollapse]="multiple.option1">
      <div class="card card-body mb-0">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid.
        Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.
      </div>
    </div>
  </div>
  <div class="col">
    <div class="multi-collapse" id="multiCollapseExample2" [ngbCollapse]="multiple.option2">
      <div class="card card-body mb-0">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid.
        Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.
      </div>
    </div>
  </div>
</div>

import {Component} from '@angular/core';
​
@Component({
  selector: 'app-ngbd-collapse-basic',
  templateUrl: './collapse-basic.html'
})
export class NgbdCollapseBasic {
  public multiple = {
    option1: true,
    option2: true
  };
​
  collapsedWithAnchor(event) {
    event.preventDefault();
​
    this.multiple.option1 = !this.multiple.option1;
  }
​
  toggleCollapsed(event) {
    event.preventDefault();
​
    this.multiple.option1 = !this.multiple.option1;
    this.multiple.option2 = !this.multiple.option2;
  }
}
​

<ngb-accordion #acc="ngbAccordion" activeIds="ngb-panel-0">
  <ngb-panel title="Simple">
    <ng-template ngbPanelContent>
      Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia
      aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor,
      sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica,
      craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings
      occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus
      labore sustainable VHS.
    </ng-template>
  </ngb-panel>
  <ngb-panel>
    <ng-template ngbPanelTitle>
      <span>&#9733; <b>Fancy</b> title &#9733;</span>
    </ng-template>
    <ng-template ngbPanelContent>
      Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia
      aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor,
      sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica,
      craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings
      occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus
      labore sustainable VHS.
    </ng-template>
  </ngb-panel>
  <ngb-panel title="Disabled" [disabled]="true">
    <ng-template ngbPanelContent>
      Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia
      aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor,
      sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica,
      craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings
      occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus
      labore sustainable VHS.
    </ng-template>
  </ngb-panel>
</ngb-accordion>
​