title: setValue is not a function
body: <p>I'm building a data-driven form in Ionic 2, with a few fields. I'm trying to manually update the value of one control, when the value of the form changes. However, I'm getting this error: <code>TypeError: _this.myForm.controls.name.setValue is not a function</code>. I have tried both with and without the <code>&lt;FormControl&gt;</code> type cast, but the error remains.</p>
  
  <pre><code>import { Component } from '@angular/core';
  import { FormBuilder, FormControl, FormGroup, Validators, REACTIVE_FORM_DIRECTIVES } from '@angular/forms';
  
  @Component({
       templateUrl: 'build/pages/lead-provider/add-bp/add-bp.html',
       directives: [REACTIVE_FORM_DIRECTIVES]
   })
   export class AddBpPage {
       private myForm: FormGroup;
  
       constructor(private formBuilder: FormBuilder) {
           this.myForm= formBuilder.group({
               'name': ['', [Validators.required]],
               'email': ['', [Validators.required]],
               'phone': ['', [Validators.required]]
           });
  
           this.myForm.valueChanges.subscribe((value) =&gt; {
               (&lt;FormControl&gt;this.myForm.controls['name']).setValue('abc');
           });
       }
  }
  </code></pre>