<form #testForm="ngForm">
    Email Address:
    <input type="text" name="username" size="50" required="required" [(ngModel)]="model.username" ngControl="username" #username="ngForm" />

    Password:
    <input type="password" name="password" size="20" required="required" [(ngModel)]="model.password" ngControl="password" #password="ngForm" testdir />

    <input type="submit" value="Login" />
</form>

import {Component} from 'angular2/core';

import {TestDirective} from '../../directives/test.directive';

@Component({
    selector: 'test-app',
    templateUrl: 'login-form.html',
    directives: [TestDirective]
})
export class TestApp {}

import {Directive} from 'angular2/core';

@Directive({
    selector: '[testdir]',
    host: {
        '(keydown)': 'run()'
    }
})
export class TestDirective {

    varpassword: string;

    constructor() {
        this.varpassword = [******]
    }

    run() {
        console.log( this.varpassword );
    }

}