I would like to use the built in form validation provided by AngularJS. However, within the form I am using custom directives that each have an isolate scope. Because of this the form element does not have access to the bound values.

Any idea how to fix this?

or, is it possible to use AngularJS validation without the use of a form? 

The ng-minlength and ng-required directives are not triggering the form validation.

```
<div ng-app="myApp" ng-controller="myCtrl">
    <form name="myForm" novalidate>
        <do-something ng-model="variable"></do-something>
        <h4 data-ng-if="myForm.myElement.$error.required">Please enter something</h4>
        <h4 data-ng-if="myForm.myElement.$error.greaterThanOne">Please enter a value greater than 1</h4>
        <h4 data-ng-if="myForm.myElement.$error.minLength">Please enter something longer than 1 digit</h4>
    {{myForm.myElement.$error}}     
    </form>
</div>

var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope) {
});
app.directive('doSomething', function () {
    return {
        restrict: 'E',
        require: '?ngModel',
        scope: {
            model: '=ngModel'
        },
        template: 
            '<div>' +
            '  <input name="myElement" ng-model="model" ng-required ng-minlength="1" />' +
            '</div>'
    }
});

```

Full Plunk can be found here: Here is a plunkr that demonstrates the problem: <http://plnkr.co/edit/iWyvX2?p=preview>