title: Ionic2 checkbox with formControlName
body: <p>Actually I am stuck with an issue when using checkbox in ionic2.</p>
  
  <p>I am using checkbox as:</p>
  
  <pre><code>&lt;ion-item&gt;
      &lt;ion-label&gt;Agree&lt;/ion-label&gt;
      &lt;ion-checkbox color="dark" id="agree" name='agree' class="form-control" formControlName="agree" [checked]="false" &gt;&lt;/ion-checkbox&gt;
    &lt;/ion-item&gt;
  </code></pre>
  
  <p>In .ts i am fetching its value as :</p>
  
  <pre><code>console.log(this.timelogForm.controls['agree'].value);
  </code></pre>
  
  <p>I want it to be unchecked initially.</p>
  
  <p>My issues are :</p>
  
  <ol>
  <li><p>on using formControlName="agree" it is checked ..</p></li>
  <li><p>I get its value in .ts if it is once clicked but I want if it's not clicked on submit I get false and if checked I get true..</p></li>
  </ol>
  
  <p>Any help please</p>