javascript - Angular : How to enable a text box if other text box input is valid

Question

加载时，我保持禁用第二个文本框。我正在验证第一个文本框输入，然后将占位符传递给第二个复选框。 同时我想启用第二个文本框字段。如何做到这一点？

  <label for="customerRequestId" class="col-sm-1 control-label">Product</label>
  <div class="col-sm-2">
          <input type="text" class="form-control" name="customerProduct" ng-model="customerProduct"  ng-blur="validatecustomerProduct()"/>
  </div>
        <label for="customerPeriod" class="col-sm-2 control-label">date Period</label>
  <div class="col-sm-2">
          <input type="text" class="form-control ng-dirty ng-invalid ng-invalid-pattern ng-invalid-required" name="customerPeriod" placeholder="{{datePlaceholder}}"disabled="disabled"ng-model="customerPeriod"   />

  </div> 

Answer 1

查看 ngDisabled - https://docs.angularjs.org/api/ng/directive/ngDisabled - 并使用与您需要的验证相匹配的表达式。

<INPUT
  ng-disabled="expression">
...
</INPUT>