Angular PrimeNG Accordion Programmatic
Last Updated :
07 Oct, 2022
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 Programmatic in Angular PrimeNG. We will also learn about the properties, along with their syntaxes that will be used in the code.
The Accordion component is used to display a section of custom content in tabs.
Enabling the selected attribute enables the togglable behavior of the tabs which allows the user to toggle the tab using the togglable button.
Syntax:
<p-button
[icon]="..."
(click)="..."
styleClass="..."
label="...">
</p-button>
<p-accordion">
<p-accordionTab header="..."
[(selected)]="...>
...
</p-accordionTab>
...
</p-accordion>
Angular PrimeNG Accordion Programmatic properties:
- header: It specifies the title of the tab. It is of string data type & the default value is null.
- selected: It defines if the tab is active. It is of the boolean data type & the default value is false.
- style: It is the inline style of the component. It is of string data type & the default value is null.
- styleClass: it is the style class of the component. It is of string data type & the default value is false.
Angular PrimeNG Accordion Programmatic Event:
- onClose: It is a callback that is fired by clicking on the header.
- onOpen: It is a callback that is fired when the tab gets expanded.
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 --open
Example 1: Below is the example that illustrates the use of the Angular PrimeNG Accordion Programmatic.
app.component.html
<h2 style="color: green">GeeksforGeeks</h2>
<h5>Angular PrimeNG Accordion Programmatic</h5>
<div class="p-py-2">
<p-button
[icon]="activeTab[0]?'pi pi-minus':'pi pi-plus'"
(click)="gfg(0)"
styleClass="p-button-text"
label="Course 1">
</p-button>
<p-button
[icon]="activeTab[1]?'pi pi-minus':'pi pi-plus'"
(click)="gfg(1)"
styleClass="p-button-text ml-2"
label="Course 2">
</p-button>
</div>
<p-accordion>
<p-accordionTab
header="Course I"
[(selected)]="activeTab[0]">
<img src=
"https://media.geeksforgeeks.org/img-practice/banner/complete-interview-preparation-thumbnail.png?v=19265"
height="300"
width="350"
alt="gfg"
/>
</p-accordionTab>
<p-accordionTab
header="Course II"
[(selected)]="activeTab[1]">
<img src=
"https://media.geeksforgeeks.org/img-practice/banner/system-design-live-thumbnail.png?v=19265"
height="300"
width="350"
alt="gfg"
/>
</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 {
activeTab: boolean[] = [true, false, false];
gfg(index: number) {
this.activeTab[index] = !this.activeTab[index];
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { ButtonModule } from 'primeng/button';
import { AccordionModule } from 'primeng/accordion';
import { ToastModule } from 'primeng/toast';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
AccordionModule,
ButtonModule,
ToastModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
Output:
Example 2: Below is another example that illustrates the use of the Angular PrimeNG Accordion Programmatic.
app.component.html
<h2 style="color: green">GeeksforGeeks</h2>
<h5>Angular PrimeNG Accordion Programmatic</h5>
<div class="p-py-2">
<p-button
[icon]="activeTab[0]?'pi pi-minus':'pi pi-plus'"
(click)="gfg(0)" styleClass="p-button-text"
label="Framework 1">
</p-button>
<p-button
[icon]="activeTab[1]?'pi pi-minus':'pi pi-plus'"
(click)="gfg(1)" styleClass="p-button-text ml-2"
label="Framework 2">
</p-button>
</div>
<p-accordion>
<p-accordionTab header="Angular PrimeNG"
[(selected)]="activeTab[0]">
<p>
Angular PrimeNG is a framework used with angular
to create components with great styling and this
framework is very easy to use and is used to make
responsive websites.
</p>
</p-accordionTab>
<p-accordionTab header="React JS"
[(selected)]="activeTab[1]">
<p>
React uses a declarative paradigm that makes it
easier to reason about your application and aims
to be both efficient and flexible. It designs simple
views for each state in your application, and React
will efficiently update and render just the right
component when your data changes.
</p>
</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 {
activeTab: boolean[] = [true, false, false];
gfg(index: number) {
this.activeTab[index] = !this.activeTab[index];
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule }
from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { ButtonModule } from 'primeng/button';
import { AccordionModule } from 'primeng/accordion';
import { ToastModule } from 'primeng/toast';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
AccordionModule,
ButtonModule,
ToastModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
Output:
Reference: https://primefaces.org/primeng/accordion
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