disabling an entire div in angularjs

You can use ‘fieldset’ instead of ‘div’ and it will disable
all form elements inside it if you add ng-disabled to it.
Please find below :

<fieldset ng-disabled="true"> 
<label>ID</label> <input type="text" class="form-control"
        name="id" ng-model="study.id">
<label>Name</label> <input type="text" class="form-control"
        name="name" ng-model="study.name" ng-minlength=1
        ng-maxlength=50 ng-required="true">
</fieldset>