我有一个表格,在输入时会检测到信用卡类型。
卡的类型位于“paymentForm.cardNumber。$ ccEagerType”字段中,我可以使用以下方式显示:
Devices and Simulators
如果我在表单中使用{{paymentForm.cardNumber.$ccEagerType|lowercase}} --> 'visa', 'maastercard'....
,那么效果很好。
但我想用
ng-class="'visa'"
这不起作用。
我做错了什么?
ng-class="'{{paymentForm.cardNumber.$ccEagerType|lowercase}}'"
// CSS
<form class="form-horizontal" role="form" name="paymentForm" novalidate>
<div class="form-group">
<label class="col-sm-3 control-label" for="card-number">Card</label>
<div class="col-sm-6">
<input type="text" class="form-control input-lg"
ng-class="'visa'" ng-model="card.number" cc-number cc-eager-type
name="cardNumber" ui-credit-card-mask id="cardNumber" placeholder="Cartao Visa, Mastercard e Discover">
</div>
</div>
</form>
答案 0 :(得分:2)
你不需要ng-class,只需直接输入课堂:
<form class="form-horizontal" role="form" name="paymentForm" novalidate>
<div class="form-group">
<label class="col-sm-3 control-label" for="card-number">Card</label>
<div class="col-sm-6">
<input type="text" class="form-control input-lg {{paymentForm.cardNumber.$ccEagerType|lowercase}}" ng-model="card.number" cc-number cc-eager-type
name="cardNumber" ui-credit-card-mask id="cardNumber" placeholder="Cartao Visa, Mastercard e Discover">
</div>
</div>
</form>
如果你有类似的东西,ng-class很有用:
<div
ng-class="{
'even': $even && someOtherConditions,
'odd': $odd && someOtherConditions
}">
...
</div>
答案 1 :(得分:0)
你可以用两种不同的方式来做。
作为带有语句的预定义字符串:
<div ng-class="{'green': class === 'green', 'red': class === 'red'}">class: {{class}}</div>
或者您直接使用范围支柱:
<div ng-class="class">class: {{class}}</div>
function TestCtrl($scope) {
$scope.class = 'red';
$scope.switch = function() {
if($scope.class === 'green') {
$scope.class = 'red';
} else {
$scope.class = 'green';
}
};
}
&#13;
.green {
color: green;
}
.red {
color: red;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app>
<div ng-controller="TestCtrl">
<div ng-class="{'green': class === 'green', 'red': class === 'red'}">class: {{class}}</div>
<div ng-class="class">class: {{class}}</div>
<button ng-click="switch()">Switch</button>
</div>
</div>
&#13;