import {Component} from 'angular2/src/core/annotations_impl/annotations'; import {FormBuilder, Validators, ControlGroup} from 'angular2/forms'; import {IonicView} from 'ionic/ionic'; @Component({ selector: 'ion-app' }) @IonicView({ templateUrl: 'main.html' }) class IonicApp { constructor() { var fb = new FormBuilder(); this.form = fb.group({ mapStyle: ['hybrid', Validators.required] }); } doSubmit(event) { console.log('Submitting form', this.form.value); event.preventDefault(); } } export function main(ionicBootstrap) { ionicBootstrap(IonicApp); }