我一直在和ng-bootstrap一起玩角,我对以下内容感到难过:
我的页面上有这个NgbAccordion:
<ngb-accordion #acc="ngbAccordion">
<ngb-panel *ngFor="let container of answer.resultObj.containers.containers" title="{{container.metadata.title}}">
<ng-template ngbPanelContent>
<app-containers [container]="container"></app-containers>
</ng-template>
</ngb-panel>
</ngb-accordion>
这导致点亮的ngb-panel全部崩溃。这正是我想要的,我可以通过点击它来切换app容器对象的扩展。
我还想要一个按钮来展开所有ngb-panel 。我似乎无法让它发挥作用。我找到了一个基于Angularjs(&lt; 2)的好例子,但这不起作用,似乎一次出现的[isOpen]选项不再存在了?!
我的角色成分:
import {Component, Input} from '@angular/core';
import {Answer} from '../model/answer';
@Component({
selector: 'app-answer',
templateUrl: './answer.component.html',
styleUrls: ['./answer.component.css'],
providers: []
})
export class AnswerComponent {
@Input() answer: Answer;
constructor() {
}
}
任何帮助将不胜感激......
答案 0 :(得分:11)
您可以使用手风琴上的activeIds
输入
https://ng-bootstrap.github.io/#/components/accordion/api
基本上,为每个面板分配一个唯一的ID
<ngb-panel *ngFor="let container ...; let i= index" title="Panel{{i}}" id="panel-{{i}}"
并在您的组件中声明一个活动ID列表(=必须打开的面板的ID)
activeIds: string[] = [];
然后在要打开/关闭面板时修改该列表
this.activeIds = [];//All panels closed
this.activeIds = ['panel-1', 'panel-2']; //panels 1 and 2 are open
并将此变量绑定到手风琴的activeIds
输入
<ngb-accordion #acc="ngbAccordion" [activeIds]="activeIds"
最后,添加按钮
<button (click)="activeIds=[]" >close all</button>
<button (click)="openAll()" >open all</button>
openAll()
{
this.activeIds = [/* add all panel ids here */];
}
我创建了一个stackblitz来说明这个
https://stackblitz.com/edit/angular-nzzwnc?file=app%2Fapp.component.ts
答案 1 :(得分:1)
=这是一个解决方案,允许您一次只打开一个手风琴。 您可以与(panelChange)一起使用,捕获ngb的更改,如下所示:
html:
<ngb-accordion #acc="ngbAccordion" [activeIds]="activeId" (panelChange)="toggleAccordian($event)">
<ngb-panel *ngFor="let option of options;" title="{{option}}">
<ng-template ngbPanelContent>
<ul class="nav nav-tabs">
<!--some code-->
</ul>
</ng-template>
</ngb-panel>
</ngb-accordion>
ts:
activeId: string = "";
toggleAccordian(event) {
// If it is already open you will close it and if it is closed open it
this.activeId = this.activeId == event.panelId ? "" : event.panelId;
}