Ways to transfer information from HTML form components to the Angular class

Question

Ways to transfer information from HTML form components to the Angular class

I am currently working with angular 9 and I have a requirement to connect data entered in HTML forms to the corresponding fields in my Angular class.
Below is the structure of my Angular class:

export interface MyData {
    field1: string,
    textArea1: string,
    textArea2: string
}

Furthermore, here is the segment of HTML code that I am using:

<div class="modal-body">
        <label>Field1</label>
        <input type="text" class="form-control" aria-label="Process id"/>
        <label>TextArea1</label>
        <textarea class="form-control" aria-label="With textarea"></textarea>
        <label>TextArea2</label>
        <textarea class="form-control" aria-label="With textarea"></textarea>
      </div>

I am seeking guidance on how to establish the connection between the data inputted in the form elements and the properties in the MyData Angular class?

html angular typescript angular-forms

Answer 1

Answer №1

Have you considered utilizing Angular Form for this purpose?

In the component file:

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

@Component({
 selector: 'app-your-component-selector',
 templateUrl: './your-component.component.html',
 styleUrls: ['./your-component.component.css']
})
export class YourComponent {
 /** create a new form group */
 form: FormGroup;

 constructor() {}

 ngOnInit(): void {
     this.initializeForm();
 }

 initializeForm(): void {
    /** define form control instances for field1, textArea1, and textArea2 */
    this.form = new FormGroup({
        field1: new FormControl(''),
        textArea1: new FormControl(''),
        textArea2: new FormControl(''),
    });
 }

 onSubmit(): void {
   // include your code for submission here
   console.info(this.form.value);
 }
}

A form group monitors the status and changes of each control within it, ensuring that any changes in the controls trigger an update in the parent control as well.

In the template file:

<div class="modal-body">
  <form [formGroup]="form" (ngSubmit)="onSubmit()">
    <label>Field1</label>
    <input type="text" class="form-control" formControlName="field1" aria-label="Process id"/>

    <label>TextArea1</label>
    <textarea class="form-control" formControlName="textArea1" aria-label="With textarea"></textarea>

    <label>TextArea2</label>
    <textarea class="form-control" formControlName="textArea2" aria-label="With textarea"></textarea>
  </form>
</div>

For more details, refer to this link

Answer 2

Have you considered utilizing Angular Form for this purpose?

In the component file:

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

@Component({
 selector: 'app-your-component-selector',
 templateUrl: './your-component.component.html',
 styleUrls: ['./your-component.component.css']
})
export class YourComponent {
 /** create a new form group */
 form: FormGroup;

 constructor() {}

 ngOnInit(): void {
     this.initializeForm();
 }

 initializeForm(): void {
    /** define form control instances for field1, textArea1, and textArea2 */
    this.form = new FormGroup({
        field1: new FormControl(''),
        textArea1: new FormControl(''),
        textArea2: new FormControl(''),
    });
 }

 onSubmit(): void {
   // include your code for submission here
   console.info(this.form.value);
 }
}

A form group monitors the status and changes of each control within it, ensuring that any changes in the controls trigger an update in the parent control as well.

In the template file:

<div class="modal-body">
  <form [formGroup]="form" (ngSubmit)="onSubmit()">
    <label>Field1</label>
    <input type="text" class="form-control" formControlName="field1" aria-label="Process id"/>

    <label>TextArea1</label>
    <textarea class="form-control" formControlName="textArea1" aria-label="With textarea"></textarea>

    <label>TextArea2</label>
    <textarea class="form-control" formControlName="textArea2" aria-label="With textarea"></textarea>
  </form>
</div>

For more details, refer to this link

Ways to transfer information from HTML form components to the Angular class

Answer №1

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