问题
I'm a fish in AngularJS and I have this scenario.
<form>
<input type="text">
</form>
<button type="submit">submit</button>
In normal ways AngularJS provides the ng-submit directive to work as an attribute in the form but I need to call it outside.
So, someone has experienced the same problem? If yes, what you did?
回答1:
Please, surround your code with a ng-controller, and use ng-click on buttons out of scope of <form>.
I make a sample on jsfiddle for you... try it:
http://jsfiddle.net/xKkvj/2/
<div ng-app>
<div ng-controller="Ctrl">
<form ng-submit="submit()">Enter text and hit enter:
<input type="text" ng-model="text" name="text" />
<input type="submit" id="submit" value="Submit" /> <pre>list={{list}}</pre>
</form>
<button ng-click="submit()">Submit 2</button>
</div>
</div>
with js:
function Ctrl($scope) {
$scope.list = [];
$scope.text = 'hello';
$scope.submit = function () {
if ($scope.text) {
$scope.list.push($scope.text);
$scope.text = '';
}
};
}
回答2:
Use HTML5's form attribute, here's a sample:
angular.module('app', [])
.controller('MyCtrl', ['$scope', function($scope) {
$scope.submitted = false;
$scope.confirm = function() {
$scope.submitted = true;
};
}]);form {
padding:5px;
border: 1px solid black
}<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body ng-controller="MyCtrl">
<form id="myform" ng-submit="confirm()">
<label for="myinput">My Input</label>
<input type="text" id="myinput" name="myinput">
</form>
<br>
<input type="submit" value="Submit" form="myform">
<p ng-show="submitted">
The form was submitted
</p>
</body>
</html>回答3:
This is by far the cleanest solution I found, all credits go to @Offereins https://stackoverflow.com/a/23456905/3819736
<form ng-submit="vm.submit()">
<input type="text" name="name" />
<input type="submit" id="submit-form" class="hidden" />
</form>
<label for="submit-form">
<button type="submit">submit</button>
</label>
This method doesn't require any additional controller JS or other jQuery tweaks.
回答4:
Angular 2
For anyone looking to achieve the same with Angular 2, ngForm exposes an event emitter you can use.
https://angular.io/api/forms/NgForm
<form role="form" (ngSubmit)="onSubmit()" #myForm="ngForm">
<div class="form-group">
<label for="name">Name</label>
<input autofocus type="text" ngControl="name" #name="ngForm" class="form-control" id="name" placeholder="Name">
<div [hidden]="name.valid || name.pristine" class="alert alert-danger">
Name is required
</div>
</div>
</form>
<button type="submit" class="btn btn-primary" (click)="myForm.ngSubmit.emit()">Add</button>
You can also perform the same emit from inside your component ts/js file
回答5:
Here is my test code. The controller who has the login method is already called!
<form ng-submit="login()" id="form-test" name="formTest">
<input type="text" name="username">
<br>
<input type="password" name="userpass">
<br>
<!-- works -->
<input type="submit" value="submit inside" id="test">
</form>
<!-- change the path from /#/login to /?username=aaa&userpass=aaa#/login and reloads the page-->
<button type="submit" onclick="$('#form-test').submit();">submit outside (jquery)</button>
<!-- doesn't work -->
<button type="submit" ng-click="formTest.submit()">submit outside (ng-click)</button>
回答6:
All great answers, but the uber-solution, with all your options laid out: http://plnkr.co/edit/VWH1gVXjP2W9T9esnVZP?p=preview
<form ng-submit="submit()" name="jForm" id="jForm" onsubmit="event.returnValue = false; return false;">
<input type="text" class="form-control" placeholder="try to hit the enter key in here" />
<div class="btn btn-default" id="tap">
Tap me
</div>
<div ui-submit="" class="btn btn-primary">Submit form</div>
</form>
<ui-submitform class="btn btn-primary" formsubmitfunction="submit()">Submit form 2</ui-submitform>
<button onclick="$('#jForm').submit()">jquery Submit</button>
and extending @m-k's and combing ideas from @joaozito-polo:
app.directive('uiSubmitform', function()
{
// need this to make sure that you can submit your form by simply pressing the enter key in one of the input fields
return {
restrict: 'E',
link: function(scope, element, attrs)
{
element.onTrigger(function()
{
//scope.$apply(attrs.formsubmitfunction);
scope.$eval(attrs.formsubmitfunction);
});
}
};
});
回答7:
Short answer Look at http://jsfiddle.net/84bodm5p/
Easiest way for me create special directive for external submission.
Important only use right event .triggerHandler('submit') on form element
$scope.$on('makeSubmit', function(event, data){
if(data.formName === $attr.name) {
$timeout(function() {
$el.triggerHandler('submit'); //<<< This is Important
//equivalent with native event
//$el[0].dispatchEvent(new Event('submit'))
}, 0, false);
}
})
Look at my answer here How to trigger form submit programmatically in AngularJS?
回答8:
If you are looking a handle of submitted state of form: In function ng-click just add vm.formName.$setSubmitted();
ng-click="vm.formName.$setSubmitted(); vm.submit()"
回答9:
There is a solution that works for me:
http://jsbin.com/ODaFaGU/3/edit
Check out the PART 2 and PART 3.
There are two solutions inside.
One for the regular form submit buttons - it allows you to tap the buttons without a delay, but also ensures that pressing the "enter" key in any of the form fields will trigger a submit.
Secondly there is an additional eventHandler that combines the click, tap and keydown[enter] events into a single one - this ensures that you can hit your controls as well with the keyboard, as with a click on desktop, and a tap on mobile(without hitting the click event twice) devices.
If you have any problems with this, give me a comment, I'll fix it.
回答10:
In Angular you don't submit forms (well, at least in the angular way). You just need a function that will do what you want to do when you complete the form.
Just call that function in your <button> and you're ready to go.
Example: plunker
来源：https://stackoverflow.com/questions/18581269/angularjs-call-the-ng-submit-event-outside-the-form