title: Is it possible to have an Angular 2 formGroup without a form tag?
body: <p>I'm looking to <a href="https://angular.io/docs/ts/latest/api/forms/index/FormGroup-class.html" rel="noreferrer">Angular 2 documentation</a>, and there is no way to find what is the best practice about how to use <strong>formGroup</strong>.</p>
  
  <blockquote>
    <p><strong>Is it mandatory to enclose a <code>formGroup</code> with a form tag ?</strong></p>
  </blockquote>
  
  <p>I've looked to this stack overflow question:</p>
  
  <p><strong><a href="https://stackoverflow.com/questions/38444778/formgroup-expects-a-formgroup-instance">formGroup expects a FormGroup instance</a></strong></p>
  
  <p>I've created this component template:</p>
  
  <pre><code>&lt;div [formGroup]="infoIdentityForm"&gt;
    &lt;div class="info-identity_title" *ngIf="showTitle"&gt;
      &lt;div class="group-title"&gt;Titre&lt;/div&gt;
      &lt;div class="group-radio"&gt;
        &lt;span *ngFor="let choice of enumTitleValue"&gt;
          &lt;label&gt;{{choice}}&lt;/label&gt;
          &lt;input type="radio" formControlName="title" name="title" [id]="choice"/&gt;
        &lt;/span&gt;
      &lt;/div&gt;
    &lt;/div&gt;
    &lt;div class="info-identity_firstname"&gt;
      &lt;div class="group-title"&gt;Prénom&lt;/div&gt;
      &lt;div class="group-input"&gt;
        &lt;input type="text" class="form-control" formControlName="firstName" maxlength="25"&gt;
      &lt;/div&gt;
    &lt;/div&gt;
    &lt;div class="info-identity_lastname"&gt;
      &lt;div class="group-title"&gt;Nom&lt;/div&gt;
      &lt;div class="group-input"&gt;
        &lt;input type="text" class="form-control" formControlName="lastName" maxlength="25"&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I'm trying to <strong>avoid the use of nested form tags</strong></p>