Angular 5 - Can't bind to 'ngFormOptions' since it isn't a known property of 'form'

Question

We just recently updated our application Angular version to v5 and as part of new update Forms support ngFormOptions to configure the validations f

Answer 1

As @Andriy mentioned in his comments

ngForms selector is selector: 'form:not([ngNoForm]):not([formGroup]),ngForm,[ngForm]' - source . Thus, using formGroup directive on form will make this form as NOT ngForm and ngFormOptions will have no affect in this case.

Alternatively, we can use the said options in `component file as below:

this.testform = new FormGroup({
      testcontrol: new FormControl('', Validators.required)
}, {updateOn: 'submit'});