Angular PrimeNG PickList Multiple Selection
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. It provides a lot of templates, components, theme design, an extensive icon library, and much more. In this article, we will see the Angular PrimeNG PickList Multiple Selection.
The PickList Component is used to reorder items between different categories and lets us pick and select items. It acts as a drag-and-drop component with two tables and contents in it.
Multiple Selection is used to select multiple items in the picklist at once. This is done by disabling the property called metaKeySelection . When we make metaKeySelection false, then multiple selections are enabled
Syntax:
<p-pickList sourceHeader="...." targetHeader="...." [metaKeySelection]="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 npm install @angular/cdk --save
Project Structure: It will look like the following:
Steps to run the application: Run the below command to see the output
ng serve --save
Example 1: Below is the example code that illustrates the use of Angular PrimeNG Picklist Multiple Selection. In this example, we will enable multiple selections. You will be able to select multiple items at once in the picklist.
- app.component.html:
HTML
< h1 style = "color: green;" > w3wiki </ h1 > < h3 > Angular PrimeNG Picklist Multiple Selection </ h3 > < p-pickList ="sourceTutorials" [target]="targetTutorials" sourceHeader = "Tutorials Available in w3wiki" targetHeader = "Selected Tutorials from w3wiki" [dragdrop]="true" [sourceStyle]="{ height: '500px' ,background:'pink'}" [targetStyle]="{ height: '500px',background:'yellow' }" [metaKeySelection]="false"> < ng-template let-tutorial pTemplate = "item" > < div > < div style = "background:'green';color:'white'" > < h5 class = "mb-2" > {{ tutorial.title }} </ h5 > < h5 >{{ tutorial.category }}</ h5 > < h6 class = "mb-2" > Rating: {{ tutorial.rating }} </ h6 > </ div > </ div > </ ng-template > </ p-pickList > |
- 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 { sourceTutorials: Tutorial[] = []; targetTutorials: Tutorial[] = []; constructor(private primengConfig: PrimeNGConfig) {} ngOnInit() { this .sourceTutorials = [ { title: "Queue" , category: "Data Structure" , rating: 8 }, { title: "Circularly LinkedList" , category: "Data Structure" , rating: 1 }, { title: "Doubly LinkedList" , category: "Data Structure" , rating: 3 }, { title: "Red Black Tree" , category: "Data Structure" , rating: 9 }, { title: "Breadth First Search" , category: "Graph" , rating: 6 }, { title: "Floyd's Cycle" , category: "Algorithm" , rating: 7 }, { title: "Travelling Salesman Problem" , category: "Algorithm" , rating: 4 }, { title: "Bellman Ford" , category: "Graph" , rating: 8 }, { title: "KMP Algorithm" , category: "String" , rating: 10 } ]; this .targetTutorials = []; this .primengConfig.ripple = true ; } } export interface Tutorial { category?: string; title?: string; rating?: number; } |
- app.module.ts:
Javascript
import { NgModule } from "@angular/core" ; import { BrowserModule } from "@angular/platform-browser" ; import { FormsModule } from "@angular/forms" ; import { HttpClientModule } from "@angular/common/http" ; import { BrowserAnimationsModule } from "@angular/platform-browser/animations" ; import { AppComponent } from "./app.component" ; import { PickListModule } from "primeng/picklist" ; @NgModule({ imports: [ BrowserModule, BrowserAnimationsModule, PickListModule, HttpClientModule, FormsModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule {} |
Output:
Example 2: Below is another example code that illustrates the use of Angular PrimeNG Picklist Multiple Selection. In this example, we will enable multiple selections. You won’t be able to select multiple items at once in the picklist.
- app.component.html:
HTML
< h1 style = "color: green;" > w3wiki </ h1 > < h3 > Angular PrimeNG Picklist Multiple Selection </ h3 > < p-pickList ="sourceTutorials" [target]="targetTutorials" sourceHeader = "Tutorials Available in w3wiki" targetHeader = "Selected Tutorials from w3wiki" [dragdrop]="true" [sourceStyle]="{ height: '500px' ,background:'pink'}" [targetStyle]="{ height: '500px',background:'yellow' }" [metaKeySelection]="true"> < ng-template let-tutorial pTemplate = "item" > < div > < div style = "background:'green';color:'white'" > < h5 class = "mb-2" > {{ tutorial.title }} </ h5 > < h5 >{{ tutorial.category }}</ h5 > < h6 class = "mb-2" > Rating: {{ tutorial.rating }} </ h6 > </ div > </ div > </ ng-template > </ p-pickList > |
- 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 { sourceTutorials: Tutorial[]=[]; targetTutorials: Tutorial[]=[]; constructor(private primengConfig: PrimeNGConfig) { } ngOnInit() { this .sourceTutorials = [ { title: 'Queue' , category: 'Data Structure' , rating: 8, }, { title: 'Circularly LinkedList' , category: 'Data Structure' , rating: 1, }, { title: 'Doubly LinkedList' , category: 'Data Structure' , rating: 3, }, { title: 'Red Black Tree' , category: 'Data Structure' , rating: 9, }, { title: 'Breadth First Search' , category: 'Graph' , rating: 6, }, { title: "Floyd's Cycle" , category: 'Algorithm ', rating: 7, }, { title: ' Travelling Salesman Problem ', category: ' Algorithm ', rating: 4, }, { title: ' Bellman Ford ', category: ' Graph ', rating: 8, }, { title: ' KMP Algorithm ', category: ' String', rating: 10, }, ]; this .targetTutorials = []; this .primengConfig.ripple = true ; } } export interface Tutorial { category?: string; title?: string; rating?: number; } |
- app.module.ts:
Javascript
import { NgModule } from "@angular/core" ; import { BrowserModule } from "@angular/platform-browser" ; import { FormsModule } from "@angular/forms" ; import { HttpClientModule } from "@angular/common/http" ; import { BrowserAnimationsModule } from "@angular/platform-browser/animations" ; import { AppComponent } from "./app.component" ; import { PickListModule } from "primeng/picklist" ; @NgModule({ imports: [ BrowserModule, BrowserAnimationsModule, PickListModule, HttpClientModule, FormsModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule {} |
Output:
Reference: http://primefaces.org/primeng/picklist