How to clear form after submit in Angular 2?

Question

I have some simple angular 2 component with template. How to clear form and all fields after submit?. I can\'t reload page. After set data with date.setValue(\'\')

Answer 1

There is a new discussion about this (https://github.com/angular/angular/issues/4933). So far there is only some hacks that allows to clear the form, like recreating the whole form after submitting: https://embed.plnkr.co/kMPjjJ1TWuYGVNlnQXrU/

Answer 2

this.myForm.reset();

This is all enough...You can get the desired output

Answer 3

Below code works for me in Angular 4

import { FormBuilder, FormGroup, Validators } from '@angular/forms';
export class RegisterComponent implements OnInit {
 registerForm: FormGroup; 

 constructor(private formBuilder: FormBuilder) { }   

 ngOnInit() {
    this.registerForm = this.formBuilder.group({
      empname: [''],
      empemail: ['']
    });
 }

 onRegister(){
    //sending data to server using http request
    this.registerForm.reset()
 }

}

Answer 4

Here is how I do it in Angular 7.3

// you can put this method in a module and reuse it as needed
resetForm(form: FormGroup) {

    form.reset();

    Object.keys(form.controls).forEach(key => {
      form.get(key).setErrors(null) ;
    });
}

There was no need to call form.clearValidators()

Answer 5

See also https://angular.io/docs/ts/latest/guide/reactive-forms.html (section "reset the form flags")

>=RC.6

In RC.6 it should be supported to update the form model. Creating a new form group and assigning to myForm

[formGroup]="myForm"

will also be supported (https://github.com/angular/angular/pull/11051#issuecomment-243483654)

>=RC.5

form.reset();

In the new forms module (>= RC.5) NgForm has a reset() method and also supports a forms reset event. https://github.com/angular/angular/blob/6fd5bc075d70879c487c0188f6cd5b148e72a4dd/modules/%40angular/forms/src/directives/ng_form.ts#L179

<=RC.3

This will work:

onSubmit(value:any):void {
  //send some data to backend
  for(var name in form.controls) {
    (<Control>form.controls[name]).updateValue('');
    /*(<FormControl>form.controls[name]).updateValue('');*/ this should work in RC4 if `Control` is not working, working same in my case
    form.controls[name].setErrors(null);
  }
}

See also

• https://github.com/angular/angular/issues/6196
• https://github.com/angular/angular/issues/6169
• https://github.com/angular/angular/issues/4933
• https://github.com/angular/angular/issues/4914
• https://github.com/angular/angular/issues/6371

Answer 6

Make a Call clearForm(); in your .ts file

Try like below example code snippet to clear your form data.

clearForm() {

this.addContactForm.reset({
      'first_name': '',
      'last_name': '',
      'mobile': '',
      'address': '',
      'city': '',
      'state': '',
      'country': '',
       'zip': ''
     });
}