Angular PrimeNG SelectButton 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 SelectButton component in Angular PrimeNG.

SelectButton component: It is used to make a group of buttons from which the user can select a value. 

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.
• optionValue: It is used to give the value of an option, defaults to the option itself when not defined. It is of string data type, the default value is value.
• multiple: It is used to set the when specified, allows selecting multiple values. It is of the boolean data type, the default value is false.
• tabindex: It is used to set the specified tab order of the element. It is of number datatype, the default value is 0.
• style: It is used to set the Inline style of the element. It is of string data type, the default value is null.
• styleClass: It is used to set the style class of the element. It is of string data type, the default value is null.
• ariaLabelledBy: It is used to establish the relationships among the component and label(s) where its value should be one or more element IDs. It is of string data type, the default value is null.
• disabled: It specifies that the element should be disabled, It is of the boolean data type, the default value is false.
• dataKey: It is the property that is used to Identify an option, It is of string data type, the default value is null.

Event:

• onChange: it is a callback that is fired when the value changes.
• onOptionClick: it is a callback that is fired when a button is clicked.

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:

Example 1: This is the basic example that shows how to use the SelectButton component.

app.component.html

<h2>GeeksforGeeks</h2>
<h5>PrimeNG SelectButton component</h5>
<p-selectButton [options]="gfg"></p-selectButton>

app.component.ts

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

@Component({
  selector: "my-app",
  templateUrl: "./app.component.html"
})
export class AppComponent {
  gfg: any[];

  constructor(private primeNGConfig: PrimeNGConfig) {
    this.gfg = [
      { label: "Off", value: "off" },
      { label: "On", value: "on" }
    ];
  }

  ngOnInit() {
    this.primeNGConfig.ripple = true;
  }
}

app.module.ts

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: In this example, we will know how to use multiple properties in the selectButton component.

app.component.html

<h2>GeeksforGeeks</h2>
<h5>PrimeNG SelectButton component</h5>
<p-selectButton [options]="gfg" multiple="true"></p-selectButton>

app.component.ts

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

@Component({
  selector: "my-app",
  templateUrl: "./app.component.html",
})
export class AppComponent {
  gfg: any[];

  constructor(private primeNGConfig: PrimeNGConfig) {
    this.gfg = [
      { label: "Selection 1", value: 1 },
      { label: "Selection 2", value: 2 },
      { label: "Selection 3", value: 3 },
    ];
  }

  ngOnInit() {
    this.primeNGConfig.ripple = true;
  }
}

pp.module.ts

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://primeng.org/selectbutton