如果值不为null或为空,我需要有条件地将类应用于div
,但我遇到了语法问题。这就是我正在尝试的:
<div ng-repeat="itemTabelNutricional in item.propriedadesNutricionais.obrigatorias">
<div class="row">
<div class="col-xs-12 col-lg-3">
<div class="form-group">
<label ng-bind-html="itemTabelNutricional.nutrientTypeCode.nome"></label>
</div>
</div>
<div class="col-xs-12 col-lg-3">
<div class="form-group" ng-class="!!itemTabelNutricional.measurementPrecisionCode ? {'has-error': form.nutricional.itemTabelNutricional.quantityContained.$invalid && form.submitted} : ''">
<input type="text"
class="form-control ng-pristine ng-untouched ng-valid ng-valid-maxlength"
maxlength="255"
data-toggle="popover"
data-trigger="hover"
data-container="body"
data-content="Informe a quantidade."
ng-required="true"
ng-model="itemTabelNutricional.quantityContained" />
</div>
</div>
</div>
</div>
它无法正常工作,因为我仍然得到类,即使值为null或空......任何想法?
答案 0 :(得分:0)
问题是ng-class需要是字符串还是对象表达式。试试这个:
ng-class="(!!itemTabelNutricional.measurementPrecisionCode && form.nutricional.itemTabelNutricional.quantityContained.$invalid && form.submitted ? 'has-error': '')"
可替换地:
ng-class="{'has-error': (!!itemTabelNutricional.measurementPrecisionCode && form.nutricional.itemTabelNutricional.quantityContained.$invalid && form.submitted)}"
答案 1 :(得分:0)
Ng-class接收一个对象表达式,尝试将条件放在对象中,如下所示:
ng-class="{'has-error': itemTabelNutricional.measurementPrecisionCode && form.nutricional.itemTabelNutricional.quantityContained.$invalid && form.submitted}">