Angular 8: Add input field in a form with a button Error Code

Question

Hello I need to add an input field into my form with a button. Here my code : stackblitz I got some error in my code. I got this in my browser console: Cannot find control with name: '0' and AuditsComponent.html:9 ERROR TypeError: control.registerOnChange is not a function And in my angular server : ERROR in src/app/components/audits/audits.component.ts(50,26): error TS2345: Argument of type 'any' is not assignable to parameter of type 'never'.

Thanks for contributing !

So you want an input field on top of the button? Where do you want to place it? — Liza Darwesh
– Liza Darwesh, Commented Oct 24, 2019 at 9:41
fixed your stackblitz: stackblitz.com/edit/… what are you trying to achieve — C.OG
– C.OG, Commented Oct 24, 2019 at 9:42
Thx @C_Ogoo, I want to have a textarea by default. And when i click on boutton "Ajouter" a textarea will appear under the initial textarea. If you click again on the button another textarea appear under ... — Aymeric
– Aymeric, Commented Oct 24, 2019 at 9:51

Boris Adamyan · Accepted Answer · 2019-10-24 09:55:06Z

2

I'm correcting your code

https://stackblitz.com/edit/angular-hfrx5u

you must install an import in app.module.ts

angular material
import a MatInputModule

for reactive forms input ReactiveFormsModule

 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import {MatInputModule} from '@angular/material/input';  

 and in NgModule

imports:[ BrowserModule, FormsModule, ReactiveFormsModule, MatInputModule],

edited Oct 24, 2019 at 9:55

answered Oct 24, 2019 at 9:50

Boris Adamyan

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RobC · Accepted Answer · 2019-10-29 10:20:49Z

0

Somebody helped me with my error. I corrected it in my stackblitz.

I didn't give a good property for my arrayItems.

Before (incorrect):

arrayItems= []

After (correct):

arrayItems: any[] = [];

edited Oct 29, 2019 at 10:20

RobC

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answered Oct 29, 2019 at 8:22

Aymeric

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