Angular Material 7 - Radio Button

The <mat-radiobutton>, an Angular Directive, is used for <input type="radio"> for enhance material design based stypng..

In this chapter, we will showcase the configuration required to draw a radio button control using Angular Material.

Create Angular Apppcation

Follow the following steps to update the Angular apppcation we created in Angular 6 - Project Setup chapter −

Following is the content of the modified module descriptor app.module.ts.

import { BrowserModule } from  @angular/platform-browser ;
import { NgModule } from  @angular/core ;
import { AppComponent } from  ./app.component ;
import {BrowserAnimationsModule} from  @angular/platform-browser/animations ;
import {MatRadioModule} from  @angular/material 
import {FormsModule, ReactiveFormsModule} from  @angular/forms ;
@NgModule({
   declarations: [
      AppComponent
   ],
   imports: [
      BrowserModule,
      BrowserAnimationsModule,
      MatRadioModule,
      FormsModule,
      ReactiveFormsModule
   ],
   providers: [],
   bootstrap: [AppComponent]
})
export class AppModule { }

Following is the content of the modified CSS file app.component.css.

.tp-radio-group {
   display: inpne-flex;
   flex-direction: column;
}
.tp-radio-button {
   margin: 5px;
}
.tp-selected-value {
   margin: 15px 0;
}

Following is the content of the modified ts file app.component.ts.

import { Component } from  @angular/core ;
import { FormControl } from "@angular/forms";
import { Vapdators } from "@angular/forms";
@Component({
   selector:  app-root ,
   templateUrl:  ./app.component.html ,
   styleUrls: [ ./app.component.css ]
})
export class AppComponent {
   title =  materialApp ; 
   favoriteSeason: string;
   seasons: string[] = [ Winter ,  Spring ,  Summer ,  Autumn ];
}

Following is the content of the modified HTML host file app.component.html.

<mat-radio-group class = "tp-radio-group" [(ngModel)] = "favoriteSeason">
   <mat-radio-button class = "tp-radio-button"
      *ngFor = "let season of seasons" [value] = "season">
      {{season}}
   </mat-radio-button>
</mat-radio-group>
<span class = "tp-selected-value">
   Selected Season: {{favoriteSeason}}
</span>

Result

Verify the result.

Details

As first, we ve created an radio button group using mat-radio-group bound with ngModel.

Then, we ve added radio buttons using mat-radio-button.