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Angular PrimeNG Accordion Selected

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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 see how to use the Accordion Selected in Angular PrimeNG, along with understanding 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. The selected property that is set true, which allows either one-way binding or two-way binding, specifies the content’s visibility.

Syntax:

<p-accordion>
   <p-accordionTab 
        header="..." 
        [selected]="true">
        ...
   </p-accordionTab>
   ...
</p-accordion>

Angular PrimeNG Accordion Selected 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.

Angular PrimeNG Accordion Selected 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 Selected, where the first accordion is initially selected.

app.component.html




<h2 style="color: green">
    GeeksforGeeks
</h2>
<h5>
    Angular PrimeNG Accordion Selected
</h5>
  
<p-accordion>
    <p-accordionTab 
        header="Angular PrimeNG" 
        [selected]="true">
        <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="Angular PrimeNG">
        <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="Angular PrimeNG">
        <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-accordion>


app.component.ts




import { Component } from '@angular/core';
  
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.scss'],
})
export class AppComponent { }


app.module.ts




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';
  
@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        AccordionModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
})
export class AppModule { }


Output:

 

Example 2: Below is another example that illustrates the use of the Angular PrimeNG Accordion Selected.

HTML




<h2 style="color: green">
    GeeksforGeeks
</h2>
<h5>
    Angular PrimeNG Accordion Selected
</h5>
  
<p-accordion>
    <p-accordionTab header="Angular PrimeNG">
        <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="Angular PrimeNG" 
        [selected]="true">
        <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="Angular PrimeNG">
        <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-accordion>


app.component.ts




import { Component } from '@angular/core';
  
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.scss'],
})
export class AppComponent { }


app.module.ts




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';
  
@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        AccordionModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
})
export class AppModule { }


Output:

 

Reference: https://primefaces.org/primeng/accordion



Last Updated : 07 Oct, 2022
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