Why is this form evaluating to true? - angularjs

Question

<form name="companyProfileForm" autocomplete="false" novalidate ng-submit="OnSaveCompanyProfile(companyProfileForm.$valid)" ng-controller="companyProfileDataEntryController">
<section ng-hide="!IsCompanyKnown();" class="row">
<div class="small-12 medium-6 large-6 columns">
<!--Industry-->
<section class="row">
<div class="small-12 medium-12 large-12 columns" ng-class="{ 'has-error' : (companyProfileForm.Industry.$invalid && submitted) }">
<div class="form-group">
<label for="Industry">*Industry</label>
<select name="Industry"
ng-model="CompanyProfileModel.IndustryId"
ng-options="item.Id as item.Description for item in IndustryList"
required>
<option value=null>-- select an industry --</option>
</select>
<span class="help-block" ng-show="companyProfileForm.Industry.$invalid && submitted">Please select a value.</span>
</div>
</div>
</section>
</div>
</section>
<button></button>
</form>
No matter what I do this form will evaluate to true. I want it to throw an error that Industry is required. Upon submit it goes to a function that prints to the console the parameter. It prints true every time.

Answer 1

You need to use the AngularJS ng-required directive, not required. Change the select element required to ng-required="true":
<select name="Industry" ng-model="CompanyProfileModel.IndustryId" ng-options="item.Id as item.Description for item in IndustryList" ng-required="true">
<option value=null>-- select an industry --</option>
</select>

Answer 2

Using 'required' on a form element will work in angular so long as your form element has an ng-submit="action()" and a button EXACTLY as follows inside the form:
<button type='submit' ng-click='submit()'>SomeText</button>