Data binding of an input with a predefined value in Angular

Question

I wanna have a predefined input form that has the value for the email provider. I case is not modify, on submit, it should upload to firebase the gmail.com value but it dosen't upload anything unless I delete the value from the input form and rewriting.

<input class="button" value="gmail.com" formControlName="emailProvider">

Can someone tell what should I modify to work?

Tomasz Kula · Accepted Answer · 2018-04-18 16:31:35Z

2

Template Driven Forms:

<input class="button" [(ngModel)]="value">

class MyComponent {
  value = 'gmail.com'
}

Reactive Forms:

<input class="button" [formControl]="ctrl">

class MyComponent {
  ctrl = new FormControl('gmail.com');
}

answered Apr 18, 2018 at 16:31

Tomasz Kula

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Zach Newburgh · Accepted Answer · 2018-04-18 19:42:38Z

2

I think this might do the trick:

1) Remove the value property from your input;

2) When creating the emailProvider FormControl in your FormGroup instantiation, set the former's initial value to "gmail.com"

emailProvider: new FormControl('gmail.com')

By doing so, the initial value of the FormControl will be 'gmail.com' and should be able to be overridden by the user's input.

edited Apr 18, 2018 at 19:42

answered Apr 18, 2018 at 16:31

Zach Newburgh

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