10

我有一个用 AngularJS 创建的表单元素，里面有一个提交按钮，我想把这个按钮放在这个表单之外。我怎样才能用 Angular 做到这一点并让我的表单仍然得到验证？

例如主要的html代码：

<div class="sd-chk-steps" ng-show="!step_03" ng-hide="step_03">

<!-- Panel Address -->
<div id="sd-p-chk-1" class="large-8 columns sd-p-chk">
  <div class="cover step_complete" ng-show="step_01" ng-hide="!step_01">
  </div>
  <sd-panel-address >
  <!-- first form -->
  </sd-panel-address>
</div>
<!-- /. Panel Address -->

<!-- Panel delivery -->
<div id="sd-p-chk-2" class="large-8 columns sd-p-chk">
  <div class="cover" ng-show="!step_01" ng-hide="step_01"></div>
  <sd-panel-delivery>
  <!-- second form -->
  </sd-panel-delivery>
  <div class="cover step_complete" ng-show="step_02" ng-hide="!step_02"></div>
</div>
<!-- /. Panel delivery  -->

<!-- Panel payment -->
<div id="sd-p-chk-3" class="large-8 columns sd-p-chk">
  <div class="cover" ng-show="!step_02" ng-hide="step_02"></div>
  <sd-panel-payment>
  <!-- third form -->
  </sd-panel-payment>
</div>
<!-- /. Panel payment -->

<!-- group botton submit -->
<div class="sd-chk-box">
    <div class="sd-chk-box-inner">

        <div class="large-8 columns sd-box-chk-btn sd-chk-btn-sm">
          <button ng-click="clickBtn(shipping.$valid)" type="submit" class="sd-chk-btn sd-button-cta" ng-disabled="shipping.$invalid">
            Next
          </button>
        </div>

        <div class="large-8 columns sd-box-chk-btn sd-chk-btn-sm">
          <button class="sd-chk-btn sd-button-cta" ng-click="clickBtnStep02(formDelivery.$valid)" ng-disabled="formDelivery.$invalid">
            NEXT
          </button>
        </div>

        <div class="large-8 columns sd-box-chk-btn sd-chk-btn-sm">
          <button class="sd-chk-btn sd-button-cta" ng-click="clickBtnStep03(payment.$valid)" ng-disabled="payment.$invalid">
            PLACE ORDER
          </button>
        </div>

    </div>
</div>
<!-- /. group botton submit -->

例如表单html代码：

<form id="shipping" class="shipping" name="shipping" 
      novalidate
      ng-submit="form.submit(shipping.$valid)"
      ng-class="{'loading': form.submitting, 'is-el-dirty' : shipping.$dirty || shipping.dirty}">
      <fieldset>
        <div class="row">
          <div class="large-12 columns">
            <label>
              <input type="text" name="name" placeholder="Name" ng-model="form.data.name" required/>
            </label>
            <div class="error" ng-if="shipping.$submitted || shipping.name.$touched" ng-messages="shipping.name.$error">
                <p class="text-msg" ng-message="required">You did not enter your name</p>
            </div>
          </div>
          <div class="large-12 columns">
            <label>
              <input type="text" name="surname" placeholder="Surname" ng-model="form.data.surname" required/>
            </label>
            <div class="error" ng-if="shipping.$submitted || shipping.surname.$touched" ng-messages="shipping.surname.$error">
                <p class="text-msg" ng-message="required">You did not enter your Surname</p>
            </div>
          </div>
        </div>
      </fieldset>
</form>

例如控制器代码：

(function() {

  'use strict';

  /**
   * @ngdoc function
   * @name myApp.controller:globalCtrl
   * @description
   * # globalCtrl
   * Controller of the myApp
   */

  var myApp = angular.module('myApp');


  myApp.controller('globalCtrl', function($scope, $locale, $rootScope) {

      // Check if checkbox it's checked
      $scope.checked = true;

      // got to step 2
      $scope.clickBtn = function(form) {
          //valid form
          if (form === true) {
              console.log('Form is valid, $rootScope.step_01= ' + $rootScope.step_01);
              $rootScope.step_01 = true;
              $rootScope.notValidStpe_01 = true;
          }

          //invalid form
          if (form === false) {
              $rootScope.step_01 = false;
              $rootScope.notValidStpe_01 = false;
              console.log('Form is invalid, $rootScope.step_01= ' + $rootScope.step_01);
          }
      };

      // got to step 3
      $scope.clickBtnStep02 = function(form) {
          //valid form
          if (form === true) {
              console.log('Form is valid, $rootScope.step_02 "'+ $rootScope.step_02);
              $rootScope.step_02 = true;
              $rootScope.notValidStpe_02 = true;

          }

          //invalid form
          if (form === false) {
              $rootScope.step_02 = false;
              $rootScope.notValidStpe_02 = false;
              console.log('Form is invalid, $rootScope.step_02= ' + $rootScope.step_02);
          }
      };


      // All steps completed
      $scope.clickBtnStep03 = function(form) {
          //valid form
          if (form === true) {
              console.log('Form is valid, $rootScope.step_03 "'+ $rootScope.step_03);
              $rootScope.step_03 = true;
              $rootScope.notValidStpe_03 = true;

          }

          //invalid form
          if (form === false) {
              $rootScope.step_03 = false;
              $rootScope.notValidStpe_03 = false;
              console.log('Form is invalid, $rootScope.step_03= ' + $rootScope.step_03);
          }
      };

  });

}(window, window.angular));enter code here

例如 app.js 代码

(function() {

    'use strict';


    var myApp = angular
        .module('myApp', [
            'ngResource',
            'ngAnimate',
            'ngMessages',
            'templates'
        ]);


    myApp.run(function($rootScope) {
        $rootScope.step_01 = false;
        $rootScope.step_02 = false;
        $rootScope.step_03 = false;

        $rootScope.notValidStpe_01 = false;
        $rootScope.notValidStpe_02 = false;
        $rootScope.notValidStpe_03 = false;
    });

}(window, window.angular));
4

4 回答 4

24

线索是使用 ngForm 指令并分配一个引用 $rootScope 的表单名称属性。

<form name="$root.myForm" id="form_id">
    <input type="text" name="myField" required>
</form>

<button form="form_id" ng-disabled="$root.myForm.myfield.$invalid">
    Submit
</button>

这样可行。

于 2015-03-03T10:26:54.207 回答
3

据我了解，您尝试执行表单向导。但是，您不需要多个表单元素，只需在顶部使用一个表单元素。对于子表单，使用 ng-form 指令单独验证它们。

您可以找到有关使用 ng-form 的详细文档https://docs.angularjs.org/api/ng/directive/ngForm

像这样的东西

 <form id="complateOrder" name="orderForm" ng-init="showShippingForm = true">

    <div ng-form="" name="shipping" ng-show="showShippingForm">
       shippig fields
    <button type="button" ng-disabled="shipping.$invalid" ng-click="showDeliveryForm=true">Next</button>
    </div>
    <div ng-form="" name="delivery" ng-show="showDeliveryForm && shipping.$valid" ng-hide="shipping.$invalid" >
       delivery fields
       <button type="button" ng-disabled="shipping.$invalid  && delivery.$invalid" ng-click="showPaymentForm=true">Next</button>
    </div>
    <div ng-form="" name="payment" ng-show="showPaymentForm && shipping.$valid && delivery.$valid " ng-hide="shipping.$invalid && delivery.$invalid">
       payment fields
       <button type="submit" ng-disabled="orderForm.$invalid && shipping.$invalid && payment.$invalid && delivery.$invalid">Submit All</button>
    </div>
    <div>
        <button type="button" ng-click="showPaymentForm ? (showPaymentForm = false; showDeliveryForm= true):showDeliveryForm ? (showDeliveryForm=false; showShippingForm = true):showShippingForm = true">Prev</button>
    </div>

 </form>
于 2015-01-06T14:52:49.963 回答
0

如果提交按钮在表单之外，那么您可以使用 ngForm 包装您的按钮和表单（是的，ngForms 可以嵌套）。为您的 ngForm 命名，以便您可以处理提交单击并在同一范围上下文中按名称引用表单对象

于 2015-01-06T15:09:42.040 回答
0

比这个答案更简洁：

<form name="myForm">
    <input type="text" name="myField" required>
</form>

<button ng-disabled="myForm.myField.$invalid">
    Submit
</button>

（请注意，您甚至不需要myForm在底层控制器中定义，也可以省略该form属性。）

于 2015-10-29T18:19:37.207 回答