Angular PrimeNG Form Chips Custom Content 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. This article will show us how to use the Angular PrimeNG Form Chips Custom Content Component.

The Chips Component is used to take input of multiple values in a single input element. It is commonly used to take input of filters on popular e-commerce websites. We can customize the chip by using an ng-template element where the value is passed as the implicit variable.

Angular PrimeNG Form Chips Custom Content Templates:

• item: The item template is used to set a custom template for the chips.

Syntax:

<p-chips [(ngModel)]="values">
   <ng-template let-item pTemplate="item">
       ...
   </ng-template>
</p-chips>

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: 

Project Structure

Example1: In the below code, we will make use of the above syntax to demonstrate the use of the Form Chips Custom Content Component.

• app.component.html:

HTML

<div style="text-align:center;">
    <h1 style="color:green;">GeeksforGeeks</h1>
    <h3>A computer science portal for geeks</h3>
    <h4>Angular PrimeNG Form
        Chips Custom Content Component</h4>

    <div class="p-fluid">
        <h5>ng-template</h5>
        <p-chips [(ngModel)]="values3">
            <ng-template let-item pTemplate="item">
                {{ item }} - (active)
                <i class="pi pi-user p-ml-2"></i>
            </ng-template>
        </p-chips>
    </div>
</div>

• app.component.ts:

Javascript

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html'
})
export class AppComponent {
    values3?: string[];
}

• 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 { ChipsModule } from 'primeng/chips';
import { ButtonModule } from 'primeng/button';

@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        ChipsModule,
        ButtonModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})

export class AppModule { }

Output:

Example2:  In the below code, we will make use of the above syntax to demonstrate the use of the Form Chips Custom Content Component

• app.component.html:

HTML

<div style="text-align:center;">
    <h1 style="color:green;">GeeksforGeeks</h1>
    <h3>A computer science portal for geeks</h3>
    <h4>Angular PrimeNG Form
        Chips Custom Content Component</h4>

    <div class="p-fluid">
        <h5>ng-template</h5>
        <p-chips [(ngModel)]="values3">
            <ng-template let-item pTemplate="item">
                {{ item }} - (Offline)
                <i class="pi pi-user p-ml-2"></i>
            </ng-template>
        </p-chips>
    </div>
</div>

• app.component.ts:

Javascript

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html'
})
export class AppComponent {
    values3?: string[];
}

• 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 { ChipsModule } from 'primeng/chips';
import { ButtonModule } from 'primeng/button';

@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        ChipsModule,
        ButtonModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})

export class AppModule { }

Output:

Reference: https://www.primefaces.org/primeng/chips