Angular PrimeNG Accordion Lazy Loading
Last Updated :
24 Apr, 2025
Angular PrimeNG is an open-source framework with a rich set of native Angular UI components that are used for great styling and this framework is used to make responsive websites with very much ease. In this article, we will know how to use the Accordion Lazy Loading in Angular PrimeNG.
The Accordion Component is used to display a section of custom content in tabs.
Lazy Loading: Inactive tabs are not initialized until they are selected, which improves initial load time by only initializing the active tab. By default, the contents of a lazy-loaded accordionTab are cached so that they are not recreated upon selection. The cache attribute on AccordionTab can be used to set this behavior. When a ngTemplate has pTemplate="content" as part of it, an AccordionTab is designated as lazy.
Creating Angular application & module installation:
Step 1: Create an Angular application using the following command.
ng new appname
Step 2: After creating your project folder i.e. appname, move to it using the following command.
cd appname
Step 3: Install PrimeNG in your given directory.
npm install primeng --save
npm install primeicons --save
Project Structure: It will look like the following:
Steps to run the application: Run the below command to see the output
ng serve --save
Example 1: This is the basic example that illustrates how to use the Angular PrimeNG Accordion Lazy Loading.
HTML
<h1 style="color: green">GeeksforGeeks</h1>
<h5>Angular PrimeNG Accordian Lazy Loading</h5>
<p-accordion>
<p-accordionTab header="Geeks 1">
Content without Lazy load.
</p-accordionTab>
<p-accordionTab header="Geek 2">
<ng-template pTemplate="content">
Content with Lazy loading.
</ng-template>
</p-accordionTab>
</p-accordion>
import { Component } from '@angular/core';
import {MessageService} from 'primeng/api';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
providers: [MessageService]
})
export class AppComponent { }
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { AccordionModule } from 'primeng/accordion';
import { ButtonModule } from 'primeng/button';
import { ToastModule } from 'primeng/toast';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
AccordionModule,
],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
Output:
Example 2: This is another example that illustrates how to use the Angular PrimeNG Accordion Lazy Loading using images as content and enabling multiple as true.
HTML
<h1 style="color: green">GeeksforGeeks</h1>
<h5>Angular PrimeNG Accordian Lazy Loading</h5>
<p-accordion [multiple]="true">
<p-accordionTab header=
"Complete Interview Preparation">
<img src=
"https://media.geeksforgeeks.org/img-practice/banner/complete-interview-preparation-thumbnail.png?v=19265"
height="200" width="250" alt="gfg" />
</p-accordionTab>
<p-accordionTab header="System Design-Lazy Loading">
<ng-template pTemplate="content">
<img src=
"https://media.geeksforgeeks.org/img-practice/banner/system-design-live-thumbnail.png?v=19265"
height="200" width="250" alt="gfg" />
</ng-template>
</p-accordionTab>
</p-accordion>
import { Component } from '@angular/core';
import {MessageService} from 'primeng/api';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
providers: [MessageService]
})
export class AppComponent { }
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { AccordionModule } from 'primeng/accordion';
import { ButtonModule } from 'primeng/button';
import { ToastModule } from 'primeng/toast';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
AccordionModule,
],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
Output:
Reference: https://primefaces.org/primeng/accordion