Angular 6 Form Validation with Message – Angular 6 Live Validation

Angular 6 Form Validation with Message – Angular 6 Live Validation

Today, We want to share with you Angular 6 Form Validation with Message – Angular 6 Live Validation.
In this post we will show you Angular6 Form Validation Example, hear for Angular 6 Form and Validation with Examples we will give you demo and example for implement.
In this post, we will learn about Angular 6 Forms and Validation: Step By Step Example with an example.

Angular 6 Example

Angular Latest My Previous Post With Source code Read more…..

  1. Angular 6 Folder Project Structure
  2. Angular 6 CLI Installation
  3. Angular 6 Module File
  4. Angular 6 Components
  5. Angular 6 Services
  6. Angular 6 Routing
  7. Angular 6 CSS
  8. Angular 6 Class Binding
  9. Angular 6 Animation
  10. Angular 6 Templating
  11. Angular 6 HTTP Client

Angular 6 Form Validation App Component

The angular 6 app component binds the HTML form elements and HYML validators and displayed some custom message for our signup form using an Angular6 FormBuilder to make an instance of a StudentGroup that is more data all the HTML stored in the signupForm property. The signupForm is then main based bound to the HTML form in the angular 6 template below using the some [formGroup] directive.(Introduction to Angular 6 Form Validation)

We also put a getter ‘stud’ as a some data convenience property to created it easier way to retrived form angular 6 controls HTML from the template. Therefor for example angular 6 Validation Form We can retrived the student email field in the angular template using stud.email instead of signupForm.controls.email.(Angular 6 Forms and Validation: Step By Step Example)

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import { Component, OnInit } from '@angular/core';
import { FormBuilder, StudentGroup, Validators } from '@angular/forms';
 
@Component({
    selector: 'app',
    templateUrl: 'app.component.html'
})
 
export class AppComponent implements OnInit {
	signupForm: StudentGroup;
    submitted = false;
 
    constructor(private formBuilder: FormBuilder) { }
 
    ngOnInit() {
        this.signupForm = this.formBuilder.group({
			studName: ['', Validators.required],
			sirname: ['', Validators.required],
            email: ['', [Validators.required, Validators.email]],
            password: ['', [Validators.required, Validators.minLength(6)]]
        });
    }
 
    get stud() { return this.signupForm.controls; }
//Angular 6.0 Form Validation: TextBox, Button Click 
    onSubmit() {
        this.submitted = true;
 
        if (this.signupForm.invalid) {
            return;
        }
 
        alert('SUCCESS!! :-)')
    }
}

Angular 6 Form Validation App Template

The app component angular 6 HTML template Data contains all the html DOM markup for viewing the example signup HTML form in your any types of the browser(Mozila, chrome). The HTML form Some input text, checkbox etc, element uses the Like as a [formGroup] angular directive to each time bind to the signup Form StudentGroup in the angular app component some event example above(Angular 6.0 Form Validation: TextBox, Button Click).

The HTML form binds using angular 6 the form button click submit event to the Like as a generated onSubmit() function call a handlers this event in the app angular 6 component using the Angular using latest some event binding Like as a (ngSubmit)=”onSubmit()”.angular 6 Validation some custom messages are view only after events after the user some all the input forms attempts to click submit the HTML form for the users first time, It is angular controlled with the HTML form methods submitted some button property of the angular 6 app component.

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<!-- angular 6 main app container -->
<div class="jumbotron">
    <div class="pakainfo container">
        <div class="pakainfo row">
            <div class="pakainfo col-md-6 offset-md-3">
                <h2>Angular 6 Fetch HTML Form Validation</h2>
                <form [formGroup]="signupForm" (ngSubmit)="onSubmit()">
                    <div class="pakainfo form-group">
                        <label>First Name</label>
                        <input type="text" formControlName="studName" class="pakainfo form-control" [ngClass]="{ 'is-invalid': submitted && stud.studName.errors }" />
                        <div *ngIf="submitted && stud.studName.errors" class="invalid-feedback">
                            <div *ngIf="stud.studName.errors.required">First Name is required</div>
                        </div>
                    </div>
                    <div class="pakainfo form-group">
                        <label>Student Sir Name</label>
                        <input type="text" formControlName="sirname" class="form-control" [ngClass]="{ 'is-invalid': submitted && stud.sirname.errors }" />
                        <div *ngIf="submitted && stud.sirname.errors" class="invalid-feedback">
                            <div *ngIf="stud.sirname.errors.required">Student Last Name is required</div>
                        </div>
                    </div>
                    <div class="form-group">
                        <label>Email</label>
                        <input type="text" formControlName="email" class="form-control" [ngClass]="{ 'is-invalid': submitted && stud.email.errors }" />
                        <div *ngIf="submitted && stud.email.errors" class="invalid-feedback">
                            <div *ngIf="stud.email.errors.required">Student Email is required</div>
                            <div *ngIf="stud.email.errors.email">Student Email must be a valid email address</div>
                        </div>
                    </div>
                    <div class="pakainfo form-group">
                        <label>Student Password</label>
                        <input type="password" formControlName="password" class="form-control pakainfo" [ngClass]="{ 'is-invalid': submitted && stud.password.errors }" />
                        <div *ngIf="submitted && stud.password.errors" class="pakainfo invalid-feedback">
                            <div *ngIf="stud.password.errors.required">Your Password is required</div>
                            <div *ngIf="stud.password.errors.minlength">Your Password must be at least 6 characters</div>
                        </div>
                    </div>
                    <div class="pakainfo form-group">
                        <button [disabled]="loading" class="btn btn-success pakainfo">SignUP</button>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>

Angular 6 Validation App Module

There was not spme going on in the angular app more module after that the standard version on angular 6 stuff, the best way and latest main project structure We need to main task based remember for using fetch HTML forms in Angular 6 is to libs import the FetchLiveFormsModule from ‘@angular/forms’ and external include it in the all the useful imports main array of the Like as a @NgModule HTML decorator.

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//Angular6 Form Validation Example
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FetchLiveFormsModule } from '@angular/forms';
 
import { AppComponent } from './app.component';
 
@NgModule({
  imports: [
    BrowserModule,
    FetchLiveFormsModule
  ],
  declarations: [
    AppComponent
  ],
  bootstrap: [AppComponent]
})
 
export class AppModule { }

More Details of the Angular 6 Angular 6 Introduction Tutorial features of angular 6.0

Angular 6 Examples

There are the Angular 6 Step By Step Example and Learning AngularJS

We hope you get an idea about Angular 6.0 Form Validation: TextBox, Button Click
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