ui-validate example

ui-validate_example.html

<input id="itemcodeSupplier" type="text" name="artikelcodeLeverancier" placeholder="Binnen gekozen productklasse (bijv. code 1; code2)"
    ng-disabled="!Filters.SelectedProductClassId" ng-model="FiltersText.SelectedItemCodeSuppliers"
    ng-list=";" ui-validate="{maxLength : 'maxLengthValidator($value, 35)' }" />
<span style="color: red" ng-show="selectie.artikelcodeLeverancier.$error.maxLength">


<script>
  var maxLengthValidator = function ($value, 35){
    return $value.length <= 35;
  }
</script>