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In this article, we are going to see what is FormControlName in Angular 10 and how to use it.
FormControlName is used to sync a FormControl in an existing FormGroup to a form control element by name.
Syntax:
<form [FormControlName] ="name">
Exported from:
- ReactiveFormsModule
Selectors:
- [FormControlName]
Approach:
- Create the Angular app to be used
- In app.component.ts make an object that contain value for the input.
- In app.component.html use FormControlNameto get values.
- Serve the angular app using ng serve to see the output.
Example 1:
app.component.ts
import { Component, Inject } from '@angular/core';
import { FormGroup, FormControl, FormArray } from '@angular/forms'
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
form = new FormGroup({
name: new FormControl(),
rollno: new FormControl()
});
get name(): any {
return this.form.get('name');
}
get rollno(): any {
return this.form.get('rollno');
}
onSubmit(): void {
console.log(this.form.value);
}
}
app.component.html
<br>
<form [formGroup]="form" (ngSubmit)="onSubmit()">
<input formControlName="name" placeholder="Name">
<input formControlName="rollno" placeholder="RollNo">
<br>
<button type='submit'>Submit</button>
<br>
<br>
</form>
Output:
Reference: https://angular.io/api/forms/FormControlName
Last Updated : 03 Jun, 2021
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