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Angular PrimeNG Form Dropdown Disabled Options Component

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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. This article will show us how to use the calendar component in angular ngx bootstrap.

Dropdown Disabled Options Component: This is used to disable any component by using optionDisabled property.

Syntax:

<p-dropdown optionDisabled="inactive"></p-dropdown>

 

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: 

 

Example 1: In the below code, we will be using the above syntax to demonstrate the use of the Angular PrimeNG Form Dropdown Disabled Options 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 Dropdown 
        Disabled Options Component
    </h4>
  
    <p-dropdown [options]="cities" 
        [(ngModel)]="selectedCity" 
        optionLabel="name" 
        optionDisabled="inactive">
    </p-dropdown>
</div>


app.component.ts

HTML




import { Component } from '@angular/core';
import { MenuItem } from 'primeng/api';
import { SelectItem } from 'primeng/api';
import { SelectItemGroup } from 'primeng/api';
  
interface City {
    name: string,
    code: string,
    inactive: boolean
}
  
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.scss'],
})
export class AppComponent {
  
    cities: City[];
  
    selectedCity: City;
  
    constructor() {
        this.cities = [
            { name: 'India', code: 'IND', inactive: false },
            { name: 'Rome', code: 'RM', inactive: true },
            { name: 'London', code: 'LDN', inactive: false },
            { name: 'Istanbul', code: 'IST', inactive: true },
            { name: 'Paris', code: 'PRS', inactive: false },
        ];
    }
}


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 { DropdownModule } from 'primeng/dropdown';
  
@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        DropdownModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
  
export class AppModule { }


app.component.scss

:host ::ng-deep .p-dropdown {
     width: 14rem;
}

Output:

 

Example 2: In the below code, we will be using the above syntax to demonstrate the use of the Angular PrimeNG Form Dropdown Disabled Options 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 Dropdown 
        Disabled Options Component
    </h4>
  
    <p-dropdown [options]="cities" 
        [(ngModel)]="selectedCity" 
        optionLabel="name" 
        optionDisabled="inactive">
    </p-dropdown>
</div>


app.component.ts

Javascript




import { Component } from '@angular/core';
import { MenuItem } from 'primeng/api';
import { SelectItem } from 'primeng/api';
import { SelectItemGroup } from 'primeng/api';
  
interface City {
    name: string,
    code: string,
    inactive: boolean
}
  
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.scss'],
})
export class AppComponent {
  
    cities: City[];
  
    selectedCity: City;
  
    constructor() {
        this.cities = [
            { name: 'India', code: 'IND', inactive: true },
            { name: 'Rome', code: 'RM', inactive: true },
            { name: 'London', code: 'LDN', inactive: true },
            { name: 'Istanbul', code: 'IST', inactive: true },
            { name: 'Paris', code: 'PRS', inactive: true },
        ];
    }
}


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 { DropdownModule } from 'primeng/dropdown';
  
@NgModule({
    imports: [
        BrowserModule,
        BrowserAnimationsModule,
        DropdownModule,
        FormsModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
  
export class AppModule { }


app.component.scss

:host ::ng-deep .p-dropdown {
     width: 14rem;
}

Output:

 

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



Last Updated : 10 Oct, 2022
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