What are Angular Form Groups and how do I use them?

What are Angular Form Groups and how do I use them?

Angular Form Groups are a way to group related form controls in reactive forms. They help manage the state and validation of a set of controls.

Can you show me an example of how to create a Form Group?

Sure! You can create a Form Group using the FormBuilder service. Here's a simple example:

import { FormBuilder, FormGroup } from '@angular/forms';

constructor(private fb: FormBuilder) {}

ngOnInit() {
  this.myForm = this.fb.group({
    name: [''],
    email: [''],
  });
}

How do I add validation to the Form Group?

You can add validators when creating the Form Group. For example:

this.myForm = this.fb.group({
  name: ['', Validators.required],
  email: ['', [Validators.required, Validators.email]],
});

What if I want to dynamically add controls to the Form Group?

You can use the addControl method to dynamically add controls. For example:

this.myForm.addControl('newControl', new FormControl(''));