angular-reactive-forms Questions
2
Solved
I am trying to nest multiple reactive forms in my angular project and there forms are in different components.
For example I have a component that contains a form with two inputs one input for nam...
Timbal asked 9/1, 2019 at 11:53
1
Solved
I tried to pass a FormArray into a component. This component template iterates over FormArray and displays data. It allows the user to add to the array or remove items.
ChildComponent ts
@Input()
p...
Extractive asked 4/12, 2021 at 14:8
1
I am using the value of a multi nested (Infinity level) reactive form which contains formArray, formGroups and formControls. Which is stored in DB.
Currently, I am patching the form using a recursi...
Scranton asked 15/11, 2021 at 18:35
5
Hi I need help with a reactive forms element. Basically, it's a required element. When the view first loads, the element is not red(not showing error that it needs a value). That is good and it onl...
Tegular asked 20/7, 2018 at 20:23
12
I am trying to get the Text of Selected option of Select control in Angular 4.
HTML:
<div class="col-sm-6 form-group">
<label>Industry</label>
<select class="form-control sel...
Destroyer asked 10/11, 2017 at 7:31
13
Solved
I want a button to be disabled until a checkbox has been checked using a FormBuilder for Angular. I don't want to explicitly check the value of the checkbox and would prefer to use a validator so t...
Privily asked 17/2, 2016 at 16:26
2
Solved
Hello All I have a Formarray which which has set of Roles. During Edit it dynamically removes & adds roles in that form array till here all works fine, but when i submit the form it thorws erro...
Gregory asked 11/7, 2019 at 4:19
4
Solved
How to display some text in input FormControl that not equal to value of this FormControl?
For example, get some object from a server - {id: 1, name: "Name1"}, and set value of FormControl to that...
Hadron asked 30/12, 2018 at 15:7
2
I've reactive form for create and edit actions. For edit I just patchValue(data) on form, works like a charm, but floating label from PrimeNg InputText component don't notice that there was value f...
Polysaccharide asked 11/3, 2020 at 23:6
3
I´m working on this form and want to validate while typing.
The current behavior it´s that I select the input, type and when I click on other site then the error it´s showing. I think the error it...
Hekker asked 8/5, 2018 at 23:4
6
In my Angular 4 app, I have a form with several controls.
At some points I need to force the update of their validity, so I'm doing:
this.form.get('control1').updateValueAndValidity();
this.form....
Romanism asked 28/10, 2017 at 14:20
1
Solved
I have problem passing [formGroup] to children components in Angular. It says Type 'AbstractControl | null' is not assignable to type 'FormGroup'. I think i have put all safe conditions and I have ...
Dunno asked 13/9, 2021 at 9:40
10
Solved
I have an angular reactive form
<form [formGroup]="form" (ngSubmit)="onSubmit()">
I have two buttons to submit. I need to perform a common operation when users press the button, that is su...
Sosthina asked 29/6, 2018 at 9:24
6
Solved
I have a Modal Form with the following code in the template markup
<form [formGroup]="modalFG">
...
<ion-item *ngIf="isChangeStatus()">
<ion-select formControlName="jobStatus"
...
Accessary asked 11/11, 2017 at 8:25
1
Solved
I've got several custom components that wrap PrimeNG components for various reasons. Some instances of my components are used in reactive forms, and the field's "requirement" is set using...
Fokine asked 9/9, 2021 at 16:1
2
How can I get the full path of FormControl in angular 4+?
I have the reactive form:
{
name: '',
address: {
city: '',
country: ''
}
}
And I rly need to get full path of control:
const addr...
Radiative asked 4/7, 2018 at 13:0
3
Solved
I m trying to solve one Angular form validation Hands on, for that i made the below form, this form is passing all the test cases except one, looks like the problem is with testing file(app.compone...
Preschool asked 4/10, 2019 at 5:34
5
Solved
Is there any advantage of using form control and form group over form builder?
I have seen here that:
The FormBuilder provides syntactic sugar that shortens creating instances of a FormControl...
Possible asked 7/5, 2019 at 4:47
8
I have angular reactive form in parent component and sections inside childrens component.
Inside the child component I have a checkbox - when its checked - more fields open and I want them all to ...
Saltwater asked 23/12, 2018 at 5:18
2
There is a custom input component and it is used in a reactive form with validation:
@Component({
moduleId: module.id.toString(),
selector: 'custom-select',
templateUrl: 'custom-select.compon...
Fontaine asked 10/9, 2017 at 14:19
1
Solved
I'm building a reactive form in Angular 11. It's split up across multiple divs, and the project owner wants a few repeated inputs in each of those divs so that a user can edit an input for some fie...
Rubie asked 12/7, 2021 at 13:10
4
Solved
I need to make a deep copy of a reactive form.
I have tried with ES6 spread syntax for cloning a form. I have used Typescript generics to typecast the return value of the spread syntax to FormGroup...
Plutocracy asked 7/8, 2019 at 6:14
3
Solved
I have a FormGroup object of my reactive form. Now I want to trigger the form validation programmatically.
I already check the form with this code, but my control css status classes aren't set, li...
Rackley asked 18/10, 2018 at 13:42
1
this.editForm = this.fb.group({
step1: this.fb.group({
transport_type_id: ['', [Validators.required]],
flight_code: ['', []],
}),
stops: this.fb.array([
this.initStop() //adds dynamicaly the ...
Ceremony asked 14/6, 2017 at 12:35
2
I am using Reactive FormsModule in Angular2. Now, I want to disable all controls of FormGroup. I can use readOnly property in all controls but it is not better solution as we might add new fields i...
Horticulture asked 22/2, 2017 at 15:3
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