Angular 14 Checkbox Checked Event Example

Angular 14 get checked checkbox values example; Through this tutorial, i am going to show you how to get checked checkbox values in the angular 14 apps.

Angular 14 Checkbox Checked Event Example

Follow the below given steps to get checked checkbox values in angular 14 apps:

  • Step 1 – Create New Angular App
  • Step 2 – Add Code on Module.ts File
  • Step 3 – Add Code on View File
  • Step 4 – Add Code On Component ts File
  • Step 5 – Start Angular App

Step 1 – Create New Angular App

Run the following command on command prompt to install angular app:

ng new my-new-app

Step 2 – Add Code on Module.ts File

Go to src/app directory and open app.module.ts file. Then add the following code into it:

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

Step 3 – Add Code on View File

Go to src/app/app.component.html and update the following code into it:

<div class="container">
    <h1>Angular CheckBox Example - Laratutorials.com</h1>
        
    <form [formGroup]="form" (ngSubmit)="submit()">
            
        <div class="form-group">
            <label for="website">Website:</label>
            <div *ngFor="let web of websiteList">
              <label>
                <input type="checkbox" [value]="web.id" (change)="onCheckboxChange($event)" />
                {{web.name}}
              </label>
            </div>
        </div>
        
        <button class="btn btn-primary" type="submit" [disabled]="!form.valid">Submit</button>
    </form>
</div>

Step 4 – Add Code On Component ts File

Go to the src/app directory and open app.component.ts. Then add the following code into component.ts file:

import { Component } from '@angular/core';
import { FormBuilder, FormGroup, FormControl, Validators, FormArray} from '@angular/forms';
   
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
    
  form: FormGroup;
  websiteList: any = [
    { id: 1, name: 'Google.com' },
    { id: 2, name: 'Angular.com' },
    { id: 3, name: 'laratutorials.com' }
  ];
  
  constructor(private formBuilder: FormBuilder) {
    this.form = this.formBuilder.group({
      website: this.formBuilder.array([], [Validators.required])
    })
  }
    
  onCheckboxChange(e) {
    const website: FormArray = this.form.get('website') as FormArray;
  
    if (e.target.checked) {
      website.push(new FormControl(e.target.value));
    } else {
       const index = website.controls.findIndex(x => x.value === e.target.value);
       website.removeAt(index);
    }
  }
    
  submit(){
    console.log(this.form.value);
  }
    
}

Step 5 – Start Angular App

Run the following commands on command prompt to start angular app:

ng serve

php -S localhost:8001

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