Nico Jonsson

Nico Jonsson

1595476000

Angular 10 Template Driven Forms with Validation

There are two types of forms in Angular 10

  1. Template-driven forms
  2. Reactive Forms

Template-driven forms are fit for small or simple forms, while Reactive forms are more scalable and proper for complex forms.

In Angular template-driven forms, control elements are bound to data properties, with input validation to maintain data integrity and styling to improve the user experience.

Angular Template driven forms

Template-driven forms in Angular use two-way data binding to update the data model in the component as modifications are made in the Template and vice versa.

What you can build with Angular Template-driven forms

You can develop almost any kind of form with Angular template forms like signup, login forms, contact or simple application forms, and pretty much any business form. You can layout the controls and bind them to the data in your object model.

You can define the validation rules and display validation errors, conditionally enable or disable specific controls, trigger built-in visual feedback, and much more.

Objectives

  1. Build a Register form with component and Template.
  2. Use the ngModel to create two-way data bindings for reading and writing input-control values.
  3. Implement visual feedback using special CSS classes that track the state of the controls.
  4. Show validation errors to users and enable or disable form controls based on the form status.
  5. Share information across HTML components using template reference variables.

#angular #angular 10

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Buddha Community

Angular 10 Template Driven Forms with Validation

I am Developer

1608866530

Angular 11 Reactive Forms Validation Tutorial

Reactive form validation in Angular 11 app. In this tutorial, i will show you how to use reactive form validation in angular 11 app.

As well as, and you will learn how use reactive form validation in angular 11. And also use reactive form with formGroup for validation in angular 11 app.

Reactive Form Validation In Angular 11
Step 1 – Create New Angular App
Step 2 – Import Form Module
Step 3 – Add Code on View File
Step 4 – Use Component ts File
Step 5 – Start Angular App

https://www.tutsmake.com/angular-11-reactive-forms-validation-tutorial-example/

#reactive form validation in angular 11 #angular 11/10/9/8/7 reactive forms validation example #angular 11 form validation example

Yogi Gurjar

1600308055

Laravel 8 Form Validation Tutorial

Laravel 8 form validation example. In this tutorial, i will show you how to submit form with validation in laravel 8.

And you will learn how to store form data in laravel 8. Also validate form data before store to db.

How to Validate Form Data in Laravel 8

  1. Step 1 – Install Laravel 8 Application
  2. Step 2 – Configuring Database using Env File
  3. Step 3 – Create Model & Migration File For Form
  4. Step 4 – Create Routes
  5. Step 5 – Creating Controller
  6. Step 6 – Create Blade File For Form
  7. Step 7 – Start Development Server
  8. Step 8 – Run Laravel 8 Form Validation App On Browser

https://laratutorials.com/laravel-8-form-validation-example-tutorial/

#laravel 8 form validation #laravel 8 form validation tutorial #laravel 8 form validation - google search #how to validate form data in laravel 8 #form validation in laravel 8

Angular 6 Form Validation example - Template-driven Forms » grokonez

https://grokonez.com/frontend/angular/angular-6/angular-6-form-validation-example-template-driven-forms

Angular 6 Form Validation example – Template-driven Forms

In this tutorial, we’re gonna make a Form Validation example with Angular 6 Template-driven Forms.

Related Post: Angular 6 Form Validation example – Reactive Forms

Example Overview

Our form has 3 fields: - Username: check existence - Email: check existence, then check email format - Password: check existence, then check if at least 6 characters angular-6-form-validation-example-template-driven-forms

Instructional Video

Practice Code

Modules

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';

import { AppComponent } from ‘./app.component’;

@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
FormsModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }

Component

app.component.ts

import { Component } from '@angular/core';

@Component({
selector: ‘app-root’,
templateUrl: ‘./app.component.html’,
styleUrls: [‘./app.component.css’]
})
export class AppComponent {
form: any = {};

constructor() { }

onSubmit() {
console.log(‘email=’ + this.form.email);
console.log(‘username=’ + this.form.username);
console.log(‘password=’ + this.form.password);
}
}

Template

app.component.html

More at:

https://grokonez.com/frontend/angular/angular-6/angular-6-form-validation-example-template-driven-forms

Angular 6 Form Validation example – Template-driven Forms

#angular #angular6 #validation #template-driven-forms

Turner  Crona

Turner Crona

1595950620

Angular simple dynamic template-driven form for beginners

Template driven forms are model driven forms driven by directives in a template. Template driven forms are approached by angular JS users but sometimes template driven forms will be used for complex systems. For instance, if you want to dynamically set to validate a particular form filed you can use template driven forms. In the template driven forms uses two way data binding in terms of it uses ngModel despite formControl and fromGroups.

Form structure

I am going to create a simple form that is able to create new form fields. The number of form-fields depends on the user. It can be changed at run time.

However, each form entry requires a name like formControlName in reactive forms and the state of the form as a whole that is a collection of individual form fields. Each form filed is assigned a unique id property. Therefore, template driven form controls need to be uniquely named. We can generate form fields using a unique control name. In this dynamic form, it has been used the current timestamp as a unique id or you can create a method to get random numbers to assign for this unique id. So it can get through with parent NgForm.

First, import formsModule to main module ex:- app.module.ts then create an interface to describe an object. You have to set some properties you want to this interface.

<form #parentForm="ngForm" (submit)="submitParentForm(parentForm)">
	    <ng-template ngFor let-form [ngForOf]="mainForm.formFields" let-index="index" let-isLast="last">
	        <input
	            type="form.formField1.type"
	            name="formFirld1_{{ form.id }}"
	            [(ngModel)]="form.formField1.value"
	            placeholder="form.formField1.placeholder"
	            required
	        />
	        <div *ngIf="parentForm.submitted && !form.formField1.value">Form field 1 is required</div>
	        <input
	            type="form.formField2.type"
	            name="formFirld2_{{ form.id }}"
	            [(ngModel)]="form.formField2.value"
	            placeholder="form.formField2.placeholder"
	            required
	        />
	         <div *ngIf="parentForm.submitted && !form.formField2.value">Form field 2 is required</div>
	        <button (click)="removeForm(index)">Remove form</button>
	    </ng-template>
	    <button type="submit">Submit</button>
	    <button type="button" (click)="parentForm.reset()">
	        Reset
	    </button>
	</form>
	<button (click)="addForm()" [disabled]="(!parentForm.form.valid)">Add new form</button>

#dynamic-form #angular-for-beginners #template-driven-form #angular

Laravel 8 Form Validation Example

In this tutorial we will see laravel 8 form validation example, form validation in laravel is very common functionalities and it is use in each and every website to validate form field.

Here, We will use has function in session to check error message in laravel 8. using this example you can check simple form validation as well as you can create your own custom validation in laravel 8.

Laravel 8 Form Validation Example

https://websolutionstuff.com/post/laravel-8-form-validation-example


Read Also : Laravel 8 CRUD Operation Example

https://websolutionstuff.com/post/laravel-8-crud-operation-example

#laravel 8 form validation example #form validation #how to validate form in laravel 8 #form validation in laravel #laravel #laravel8