title: Ionic 2 / Angular 2 error : "Property '_value' does not exist on type 'FormGroup'."
body: <p>I try to get a value in a form builder and I have this error : </p>
  
  <p><a href="https://i.stack.imgur.com/rl2X9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rl2X9.png" alt="enter image description here"></a></p>
  
  <p>And in my bowser : </p>
  
  <p><a href="https://i.stack.imgur.com/MYjKm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MYjKm.png" alt="enter image description here"></a></p>
  
  <p>I don't undersand beacause my console.log works ! </p>
  
  <p>There is my code : </p>
  
  <pre><code>import {Component, Input} from '@angular/core';
  import {FormGroup} from "@angular/forms";
  
  @Component({
    selector: 'address',
    templateUrl: 'address-component.html'
  })
  
  export class AddressComponentPage {
    @Input('group')
    public addressForm: FormGroup;
  
    ngOnInit() {
      console.log(this.addressForm._value.type);
    }
  }
  </code></pre>
  
  <p>I want to get my "type" value to use it for generate form field dynamically with different type of field. </p>
  
  <p>Someone have an idea ?</p>