title: Multiple Datepicker in one form Angular2 with difference component
body: <p>I have issue about create multiple datepicker in one form with difference component.
  this is example code<br>
  <a href="https://embed.plnkr.co/nRCpS4/" rel="nofollow noreferrer">https://embed.plnkr.co/nRCpS4/</a></p>
  
  <p>the problem is if i click another input bar the first datepicker dont want to close, i think because nativeElement.contains detect the another input bar is same element.</p>
  
  <p>Can someone please help me solve my problem?</p>