title: show div only user selects specific radio button - Angular 5
body: <p>I'm new to Angular 5 and I'm having radio button like component in my app as follows.</p>
  
  <pre><code> &lt;div class="btn-group btn-group-toggle" ngbRadioGroup name="radioBasic" [(ngModel)]="vehicles"&gt;
        &lt;label ngbButtonLabel class="btn btn-secondary active"&gt;
               &lt;input ngbButton type="radio" name="mode" [value]="true" &gt; Toyota
        &lt;/label&gt;
  
        &lt;label ngbButtonLabel class="btn btn-secondary"&gt;
                &lt;input ngbButton type="radio" name="mode" [value]="false"&gt; Nissan
        &lt;/label&gt;
   &lt;/div&gt;
  </code></pre>
  
  <p></p>
  
  <p>I also have a separate div as follows. I want to show that <code>div</code> only a user selects Nissan button. I try to use <code>ngif</code>. But failed. Can someone please help me.</p>
  
  <pre><code>           &lt;div class="col-sm-4"&gt;
                              &lt;div class="form-group"&gt;
                                  &lt;label class="control-label"&gt;Vehicle Type&lt;/label&gt;
                                  &lt;ng-select
  
                                          [items]="vehicleTypes"
                                          bindLabel="name"
                                          bindValue="id"
                                          [(ngModel)]="selectedVehicleTypesId"
                                          &gt;
                                  &lt;/ng-select&gt;
                              &lt;/div&gt;
                &lt;/div&gt;
  </code></pre>