提交表单angularjs后,为所有无效字段显示红色边框

Question

我有一个表单,其中我有一些输入字段.其中一些是必填字段,一些是电子邮件字段.

我正在使用必需字段的html5 必需属性和电子邮件字段的type ="email"属性.

我的问题是点击提交按钮后我必须显示所有无效字段的红色边框.

这是我的表格

<form name="addRelation">
  <label>First Name</label>
  <input type="text" placeholder="First Name" data-ng-model="model.firstName"     id="FirstName" name="FirstName" required/><br/>
  <span class="text-error" data-ng-show="addRelation.submitted && addRelation.FirstName.$error.required">first Name is required</span><br/>
  <label>Last Name</label>
  <input type="text" placeholder="Last Name" data-ng-model="model.lastName" id="LastName" name="LastName" required/><br/>
  <span class="text-error" data-ng-show="addRelation.submitted && addRelation.LastName.$error.required">Last Name is required</span><br/>
  <label>Email</label>
  <input type="email" placeholder="Email" data-ng-model="model.email" id="Email" name="Email" required/><br/>
  <span class="text-error" data-ng-show="addRelation.submitted && addRelation.Email.$error.required">Email address is required</span><br/>
  <span class="text-error" data-ng-show="addRelation.submitted && addRelation.Email.$error.email">Email address is not valid</span><br/>

  <input class="btn" data-ng-click="save(model)" type="button" value="SAVE" />  
  </form>

和我的保存功能.

$scope.save= function (model) {
    if ($scope.addRelation.$valid) {
        //form is valid- so save it to DB
    }
    else {
        //if form is not valid set $scope.addRelation.submitted to true
        $scope.addRelation.submitted=true;
    }
};
 })

现在,当我点击保存按钮而不填充任何内容时,所有错误(跨度)都会显示出来.但我想为所有无效字段显示红色边框.

我试过以下案例:

input.ng-dirty.ng-invalid{border:1px solid black;}

但是当用户直接点击提交按钮时,这会失败.(不接触输入字段)

input.ng-invalid{border:1px solid black;}

一旦用户打开注册表单,就会显示红色边框.

请帮忙.

Answer 1

参考文章:显示无效输入字段angualrjs的红色边框

我在所有输入字段上都使用了ng-class.如下所示

<input type="text" ng-class="{submitted:newEmployee.submitted}" placeholder="First Name" data-ng-model="model.firstName" id="FirstName" name="FirstName" required/>

当我点击保存按钮时,我将newEmployee.submitted值更改为true(您可以在我的问题中查看它).因此,当我单击save时,名为submitted的类将添加到所有输入字段(还有一些其他类最初由angularjs添加).

所以现在我的输入字段包含这样的类

class="ng-pristine ng-invalid submitted"

现在我使用下面的css代码在所有无效的输入字段上显示红色边框(提交表单后)

input.submitted.ng-invalid
{
  border:1px solid #f00;
}

谢谢 !!

更新:

我们可以在表单元素中添加ng-class,而不是将其应用于所有输入元素.因此,如果提交表单,则会将新类(已提交)添加到表单元素中.然后我们可以使用下面的选择器选择所有无效的输入字段

form.submitted .ng-invalid
{
    border:1px solid #f00;
}

Answer 2

如果表单已提交,则可以使用默认的ng-submitted设置.

https://docs.angularjs.org/api/ng/directive/form

例如:http://jsbin.com/cowufugusu/1/

Answer 3

我创建了一个有效的CodePen示例来演示如何实现目标.

我添加ng-click了<form>并从按钮中删除了逻辑:

<form name="addRelation" data-ng-click="save(model)">
...
<input class="btn" type="submit" value="SAVE" />

这是更新的模板:

<section ng-app="app" ng-controller="MainCtrl">
  <form class="well" name="addRelation" data-ng-click="save(model)">
    <label>First Name</label>
    <input type="text" placeholder="First Name" data-ng-model="model.firstName" id="FirstName" name="FirstName" required/><br/>
    <span class="text-error" data-ng-show="addRelation.submitted && addRelation.FirstName.$invalid">First Name is required</span><br/>
    <label>Last Name</label>
    <input type="text" placeholder="Last Name" data-ng-model="model.lastName" id="LastName" name="LastName" required/><br/>
    <span class="text-error" data-ng-show="addRelation.submitted && addRelation.LastName.$invalid">Last Name is required</span><br/>
    <label>Email</label>
    <input type="email" placeholder="Email" data-ng-model="model.email" id="Email" name="Email" required/><br/>
    <span class="text-error" data-ng-show="addRelation.submitted && addRelation.Email.$error.required">Email address is required</span>
    <span class="text-error" data-ng-show="addRelation.submitted && addRelation.Email.$error.email">Email address is not valid</span><br/>
    <input class="btn" type="submit" value="SAVE" />  
  </form>
</section>

和控制器代码:

app.controller('MainCtrl', function($scope) {  
  $scope.save = function(model) {
    $scope.addRelation.submitted = true;

    if($scope.addRelation.$valid) {
      // submit to db
      console.log(model); 
    } else {
      console.log('Errors in form data');
    }
  };
});

我希望这有帮助.