问题
I have a form element created with AngularJS with a submit button within it and I would like to put this button outside of this form. How can I do that with Angular and have my form still validated?
e.g main html code:
<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 -->
e.g form html code:
<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>
e.g controller code:
(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= ' + $rootScope.step_03);
}
};
});
}(window, window.angular));enter code here
e.g app.js code
(function() {
'use strict';
var myApp = angular
.module('myApp', [
'ngResource',
'ngAnimate',
'ngMessages',
'templates'
]);
myApp.run(function($rootScope) {
$rootScope.step_01 = false;
$rootScope.step_02 = false;
$rootScope.step_03 = false;
$rootScope.notValidStpe_01 = false;
$rootScope.notValidStpe_02 = false;
$rootScope.notValidStpe_03 = false;
});
}(window, window.angular));
回答1:
As I understand You try to do form wizzard. However you don't need multiple form element, Just use one form element at the top. For child form use ng-form directive to valiadate them seperately.
You can find detailed documentation https://docs.angularjs.org/api/ng/directive/ngForm about using ng-form
Something like this
<form id="complateOrder" name="orderForm" ng-init="showShippingForm = true">
<div ng-form="" name="shipping" ng-show="showShippingForm">
shippig fields
<button type="button" ng-disabled="shipping.$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>
回答2:
The clue is using the ngForm directive and assign a form name attribute which references to the $rootScope.
<form name="$root.myForm" id="form_id">
<input type="text" name="myField" required>
</form>
<button form="form_id" ng-disabled="$root.myForm.myfield.$invalid">
Submit
</button>
That works.
回答3:
If the submit button is outside of the form, then you can wrap your button and form with an ngForm (yes, ngForms can be nested). Give your ngForm a name so that you can handle the submit click and reference the form object by name in the same scope context
回答4:
Even more concise than this answer:
<form name="myForm">
<input type="text" name="myField" required>
</form>
<button ng-disabled="myForm.myField.$invalid">
Submit
</button>
(Note that you don't even need to define myForm in the underlying controller and you can also omit the form attribute.)
来源：https://stackoverflow.com/questions/27800859/how-to-validate-a-form-when-the-submit-button-is-outside-of-this-form-with-angu