Angular2 Reactive forms - Set default value for form input field (input type=file)?

Question

i have to set default image path into formbuilder but given exception. i have also try with empty string and null.

 buildForm() {
        this.userForm = this.formBuilder.group({
            location_id: this.formBuilder.control(null),
            image: this.formBuilder.control('assets/images-demo/avatars/user.png'),
        });
    }

ERROR DOMException: Failed to set the 'value' property on 'HTMLInputElement': This input element accepts a filename, which may only be programmatically set to the empty string.

I don't think this is possible. It is essential for browser security that the value cannot be set programmatically but only by a user action. Otherwise Javascript code would be able to retrieve files from the user's device. Exception: you can set it to the empty value, which is harmless. — Codo
– Codo, Commented May 3, 2017 at 13:22

Community · Accepted Answer · 2017-05-23 10:31:35Z

3

Error says that it is not possible to set input programmatically for type='file'.

Only empty string is possible.

Many posts say that this is a security issue to change the input value for file type.

jQuery, Select Input FILE and also set it to another INPUT

edited May 23, 2017 at 10:31

CommunityBot

11 silver badge

answered May 3, 2017 at 13:23

Amit Chigadani

29.9k14 gold badges88 silver badges102 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Angular2 Reactive forms - Set default value for form input field (input type=file)?

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related