Angular Application Login Page Form with Validations

Hello to all, welcome to therichpost.com. In this post, I will tell you, Angular Application Login Page Form with Validations.

Guys with this we will cover below things:

1. Angular 13 Reactive Form Implelemtnation.
2. Reactive forms validation email with valid format.
3. Reactive form checkbox validation.
4. Angular13 Reactive Form Responsiveness with Bootstrap 5.

Angular14 came and if you are new then you must check below link:

1. Angular 14 Tutorials

Here is the code snippet and please use carefully:

1. Very first guys, here are common basics steps to add angular 13 application on your machine and also we must have latest nodejs version(14.17.0) installed for angular 13:

npm install -g @angular/cli

ng new angularform // Set Angular 13 Application on your pc

cd angularform // Go inside project folder

2. Now run below commands to set bootstrap 5 modules into our angular 13 application for responsiveness (optional):

npm install bootstrap

npm i @popperjs/core

3. Now friends we just need to add below code into angularform/angular.json file (optional):

"styles": [
              ...
              "node_modules/bootstrap/dist/css/bootstrap.min.css"
          ],
"scripts": [
              ...
               "node_modules/bootstrap/dist/js/bootstrap.min.js"
           ]

4. Now guys we will add below code into our angularform/src/app/app.module.ts file:

...
import { ReactiveFormsModule } from '@angular/forms';

@NgModule({
...
  imports: [
   ...
    ReactiveFormsModule,
   
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

5. Now guys we will add below code into our angularform/src/app/app.component.ts file:

import { Component } from '@angular/core';
import { FormControl,FormGroup,Validators,FormBuilder } from '@angular/forms';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  //Form Validables 
registerForm:any = FormGroup;
submitted = false;
constructor( private formBuilder: FormBuilder){}
//Add user form actions
get f() { return this.registerForm.controls; }
onSubmit() {
  
  this.submitted = true;
  // stop here if form is invalid
  if (this.registerForm.invalid) {
      return;
  }
  //True if all the fields are filled
  if(this.submitted)
  {
    alert("Great!!");
  }
 
}
  ngOnInit() {
    //Add User form validations
    this.registerForm = this.formBuilder.group({
    email: ['', [Validators.required, Validators.email]],
    password: ['', [Validators.required]]
    });
  }
}

6. Finally we will add below code into our angularform/src/app/app.component.html file:

<div class="container-fluid ps-md-0">
    <div class="row g-0">
      <div class="d-none d-md-flex col-md-4 col-lg-6 bg-image"></div>
      <div class="col-md-8 col-lg-6">
        <div class="login d-flex align-items-center py-5">
          <div class="container">
            <div class="row">
              <div class="col-md-9 col-lg-8 mx-auto">
                <h3 class="login-heading mb-4">Welcome back!</h3>
  
                <!-- Sign In Form -->
                <form [formGroup]="registerForm" (ngSubmit)="onSubmit()">
                  <div class="form-floating mb-3">
                    <input type="email" class="form-control" id="floatingInput" placeholder="name@example.com" formControlName="email" class="form-control" [ngClass]="{ 'is-invalid': submitted && f.email.errors }"  id="inputEmail4">
                    <div *ngIf="submitted && f.email.errors" class="invalid-feedback">
                      <div *ngIf="f.email.errors.required">Email is required</div>
                      <div *ngIf="f.email.errors.email">Email must be a valid email address</div>
                   </div>
                    <label for="floatingInput">Email address</label>
                  </div>
                  <div class="form-floating mb-3">
                    <input type="password" class="form-control" id="floatingPassword" placeholder="Password" formControlName="password"[ngClass]="{ 'is-invalid': submitted && f.password.errors }" id="inputPassword4">
                    <div *ngIf="submitted && f.password.errors" class="invalid-feedback">
                      <div *ngIf="f.password.errors.required">Password is required</div>
                   </div>
                    <label for="floatingPassword">Password</label>
                  </div>
  
                  <div class="form-check mb-3">
                    <input class="form-check-input" type="checkbox" value="" id="rememberPasswordCheck">
                    <label class="form-check-label" for="rememberPasswordCheck">
                      Remember password
                    </label>
                  </div>
  
                  <div class="d-grid">
                    <button class="btn btn-lg btn-primary btn-login text-uppercase fw-bold mb-2" type="submit">Sign in</button>
                    <div class="text-center">
                      <a class="small" href="#">Forgot password?</a>
                    </div>
                  </div>
  
                </form>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

7. Now we will add below code into our angularform/src/app/app.component.css file:

.login {
    min-height: 100vh;
  }
  
  .bg-image {
    background-image: url('https://source.unsplash.com/WEQbe2jBg40/600x1200');
    background-size: cover;
    background-position: center;
  }
  
  .login-heading {
    font-weight: 300;
  }
  
  .btn-login {
    font-size: 0.9rem;
    letter-spacing: 0.05rem;
    padding: 0.75rem 1rem;
  }

Now we are done friends and please run ng serve command to check the output in browser(locahost:4200) and if you have any kind of query then please do comment below.

Note: Friends, I just tell the basic setup and things, you can change the code according to your requirements. For better understanding please watch video above.

Guys I will appreciate that if you will tell your views for this post. Nothing matters if your views will be good or bad.

Jassa

Thanks