Can t bind to formGroup since it isn t a known property of form

Question

Can you tell me if Can't bind to 'formGroup' since it isn't a known property of 'form'?

Answer 1

The error Can't bind to 'formGroup' since it isn't a known property of 'form' occurs in Angular when the ReactiveFormsModule is not imported into your module. This module is required to use reactive forms, including the formGroup directive.

Solution: Import ReactiveFormsModule

Open the Module File:

Locate the module file where your component is declared (e.g., app.module.ts).

Import ReactiveFormsModule:

Example:

import { NgModule } from '@angular/core';

import { BrowserModule } from '@angular/platform-browser';

import { ReactiveFormsModule } from '@angular/forms'; // Import ReactiveFormsModule

import { AppComponent } from './app.component';

@NgModule({

  declarations: [

    AppComponent

  ],

  imports: [

    BrowserModule,

    ReactiveFormsModule // Add ReactiveFormsModule here

  ],

  providers: [],

  bootstrap: [AppComponent]

})

export class AppModule { }

Verify the Component Code

Ensure your component is correctly using the formGroup directive.

Example Component:

import { Component } from '@angular/core';

import { FormBuilder, FormGroup } from '@angular/forms';

@Component({

  selector: 'app-root',

  template: `

    <form [formGroup]="myForm" (ngSubmit)="onSubmit()">

      <input formControlName="name" placeholder="Name">

      <button type="submit">Submit</button>

    </form>

  `

})

export class AppComponent {

  myForm: FormGroup;

  constructor(private fb: FormBuilder) {

    this.myForm = this.fb.group({

      name: ['']

    });

  }

  onSubmit() {

    console.log(this.myForm.value);

  }

}