Angular 2 Angular2 Custom Validations Using validators in the Formbuilder
Example
constructor(fb: FormBuilder) {
this.form = fb.group({
firstInput: ['', Validators.compose([Validators.required, CustomValidators.cannotContainSpace]), CustomValidators.shouldBeUnique],
secondInput: ['', Validators.required]
});
}
Here we use the FormBuilder to create a very basic form with two input boxes. The FromBuilder takes an array for three arguments for each input control.
- The default value of the control.
- The validators that will run on the client. You can use Validators.compose([arrayOfValidators]) to apply multiple validators on your control.
- One or more async validators in a similar fashion as the second argument.
