How to use with Reactive Forms

[KranthiKishore]

Hi,
I'm trying to implement this with ReactiveForms but ending up getting below error. Also, I don't see any examles of using this Reactive Forms in Demo. Can you please suggest how to use with Reactive forms?

 ngModel cannot be used to register form controls with a parent formGroup directive.  Try using
      formGroup's partner directive "formControlName" instead.  Example:

[hayyangovinda]

instead of [(ngModel)],use [formControlName] =" name of FormControl"