this question has already been said but unfortunately no answer worked for me. Here is my problem (angular 5): <option *ngFor="let country in countries" [value]="country.id" > {{'page...

I am working on Angular 4 project. I have a requirement to detect the changes of form control array. e.g. I have a form control array named providers, how to detect its changes? export class Custo...

I'm trying to get the value of an input field in my first ever Angular form, but it is always undefined, and I can't figure out why. I'm importing FormsModule correctly, and I can reference the for...

I have a few custom directives which are basically designed for <input>. And I have a custom component <app-decorated-input> There are a ton <app-decorated-input>s along with sim...

Might seem like an odd form, but I simplified it for the sake of the question here, and that's not my actual form. But the same scenario happens here. <form (ngSubmit)="submit(form)" #form="ngF...

My requirement is to build a component which has 2 or more html templates where as each html template has atleast 20 controls and based on few conditions load that specific template. Note: I chos...

My form has 10 to 15 fields I just want to watch the changes on 2 fields built using form-builder. Currently i can watch all the fields in the form using the following code : export class App { ...

<tbody> <tr *ngFor="let trxList of trxNumberList; let i= index"> <td>{{i}}</td> <td> <input type="text" name="trxNumber-{{i}}" class="form-control" minlength="1...

I am new with angular 4, I am trying to configure bootstrap. I installed ng-bootstrap: https://ng-bootstrap.github.io/#/getting-started I did all like on the page, but I don't see the bootstrap o...

Angular 4 is ignoring built-in HTML validation. How to make Angular consider HTML required field for input elements? Desired behaiviour: code: <form #loginForm="ngForm" (ngSubmit)=&q...