Questions tagged [formgroups]

Inquiries regarding the Angular FormGroup, a foundational component utilized for creating forms. This tool monitors and manages both the value and validity of a set of FormControls. Found within the @angular/forms package.

Differences between Angular's form builder and form control and form groupIn the

What are the benefits of using form control and form group instead of form builder? Upon visiting this link, I discovered: The FormBuilder simplifies creating instances of a FormControl, FormGroup, or FormArray by providing shorthand notation. It helps ...

Update the input value with the selected option from the dropdown menu in Angular

How can I dynamically set the value of an input field based on the selection from a dropdown menu in Angular using Reactive Forms? Below is my HTML code: <nb-card> <nb-card-header> Services </nb-card-header> <nb-card-body&g ...

What is the best way to remove all validators from a different component in Angular 7 using reactive forms?

I need to find a way to clear all validation in a form group on a sibling component when a boolean value is selected on another component within the same application. Is there a solution for achieving this? We have implemented a method in our application ...

Troubles with Custom Control Component: ControlValueAccessor and Validator Out of Sync with Form Group

Background: My custom email control component, EmailControlComponent, is designed to implement both ControlValueAccessor and Validator. The validate() method of this component takes a single parameter of type AbstractControl. As specified in Angular' ...

Why does FormGroup.Get() return null when there is a period in the name of the FormControl?

Issue: I am facing an issue with the formGroup I created using formbuilder. The problem arises when a control within the FormGroup contains a . in its name. When attempting to retrieve the formControl using the formGroup.get method, it returns null. Sampl ...

Utilizing Anglar 16's MatTable trackBy feature on FormGroup for identifying unaltered fields

In my application, I am working with a MatTable that has a datasource consisting of AbstractControls (FormGroups) to create an editable table. At the end of each row, there are action buttons for saving or deleting the elements. My goal is to implement tr ...