Angular PrimeNG Form SelectButton Selection Component

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 Form SelectButton Selection Component in Angular PrimeNG.

The SelectButton Component is used to make a group of buttons from which the user can select a value. In the  Selection Component, the SelectButton permits the selection of either single or multiple items, which depends on the behavior defined with the multiple property.

Angular PrimeNG Form SelectButton Selection Component Properties:

• options: It is an array representing select items to display as the available options. It is of array data type, the default value is null.
• optionLabel: It is used to give the label of an option. It is of string data type, the default value is the label.
• multiple: It is used to set the when specified, allowing selecting multiple values. It is of the boolean data type, the default value is false.

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:

• To run the above file run the below command:

ng serve --save

Example 1: This is the basic example that shows how to use the Angular PrimeNG Form SelectButton Selection Component using multiple=”true”.

• app.component.html:

HTML

<h1 style="color: green">GeeksforGeeks</h1>
<h5>
    Angular PrimeNG Form SelectButton
    Selection Component.
</h5>

<p-selectButton optionLabel="name"
                [options]="gfg"
                [multiple]="true">
</p-selectButton>

• app.component.ts:

Javascript

import { Component } from '@angular/core';
import { PrimeNGConfig } from 'primeng/api';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
})

export class AppComponent {
    gfg: any[];
    constructor(private primeNGConfig: PrimeNGConfig) {
        this.gfg = [
            { name: 'Geek 1' },
            { name: 'Geek 2' },
            { name: 'Geek 3' },
        ];
    }
}

• app.module.ts:

Javascript

import { NgModule } from '@angular/core';
import { BrowserModule }
    from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { BrowserAnimationsModule }
    from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { SelectButtonModule }
    from 'primeng/selectbutton';
import { ButtonModule } from 'primeng/button';

@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        SelectButtonModule,
        ButtonModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

Output:

Example 2: This is the basic example that shows how to use the Angular PrimeNG Form SelectButton Selection Component using multiple=”false”.

• app.component.html:

HTML

<h1 style="color: green">GeeksforGeeks</h1>
<h5>
    Angular PrimeNG Form SelectButton
    Selection Component.
</h5>

<p-selectButton optionLabel="name"
                [options]="gfg"
                [multiple]="false">
</p-selectButton>

• app.component.ts:

Javascript

import { Component } from '@angular/core';
import { PrimeNGConfig } from 'primeng/api';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
})

export class AppComponent {
    gfg: any[];
    constructor(private primeNGConfig: PrimeNGConfig) {
        this.gfg = [
            { name: 'Geek 1' },
            { name: 'Geek 2' },
            { name: 'Geek 3' },
        ];
    }
}

• app.module.ts:

Javascript

import { NgModule } from '@angular/core';
import { BrowserModule }
    from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { BrowserAnimationsModule }
    from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { SelectButtonModule }
    from 'primeng/selectbutton';
import { ButtonModule } from 'primeng/button';

@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        SelectButtonModule,
        ButtonModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

Output:

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