How can I get the value of the checked radio button when submitting a form using angularjs?

Question

I have a few forms. Each form have a few possible radio buttons and a submit button. Only one radio button can be checked (using the same name attribute for each radio). How

Answer 1

Your radio button's value will be available on whatever scope property you've assigned ng-model="" to on the input element. Try something like this:

JS

app.controller('MyCtrl', function($scope){ 
   $scope.submitForm = function (){
       alert($scope.radioValue):
   };

   $scope.radioValue = 1;
});

HTML

<form name="myForm" ng-controller="MyCtrl" ng-submit="submitForm()">
   <label><input type="radio" name="test" ng-model="radioValue" value="1"/> One</label>
   <label><input type="radio" name="test" ng-model="radioValue" value="2"/> Two</label>
   <label><input type="radio" name="test" ng-model="radioValue" value="3"/> Three</label>
   <div>currently selected: {{radioValue}}</div>
   <button type="submit">Submit</button>
</form>

And, so you can see it working, here is a plunker demonstrating the example

Answer 2

I faced this problem and found a really simple and clean solution. Here's what you should do.

In your controller, make an empty object with any name("radioValue" in this case).

In your HTML file, use same 'ng-model' for each radio button/input with same name as that of object joining 'name' attribute of each radio button(that too should be same for each button) separated by a period(.) as shown in code snippet.

The Controller

var radioValue={};
...
...
console.log($scope.radiovalue) //use JSON.strinigify if naccessary

The HTML File

    <input type="radio" name="somename" ng-model="radioValue.somename" value="1"/>
    <input type="radio" name="somename" ng-model="radioValue.somename" value="2"/>
    <input type="radio" name="somename" ng-model="radioValue.somename" value="3"/>
//Don't forget to mention value attribute. ng-model does the work by identifying the radio-buttons/inputs by value attribute

The Output you should expect

{"somename":"1"} //if radio-button with value "1" is selected.

Answer 3

just add $parent in ng-model .

<form name="myForm" ng-submit="submitForm()">
       <label data-ng-repeat="i in [1,2,3]"><input type="radio" name="test" ng-model="$parent.radioValue" value="{{i}}"/>{{i}}</label>
       <div>currently selected: {{radioValue}}</div>
       <button type="submit">Submit</button>
    </form>

Answer 4

Combination with ng-value

app.controller('MyCtrl', function($scope){ 
   $scope.submitForm = function() {
      *****
   };
   $scope.radioBtn = {
    name: 'radioButton'
   };

   $scope.radioValueOne = {"id": "1", "value": "whatever you want"};
   $scope.radioValueTwo = {"id": "2", "value": "whatever you want"};
   $scope.radioValueThree = {"id": "3", "value": "whatever you want"};
});

<form name="myForm" ng-controller="MyCtrl" ng-submit="submitForm()">
   <label><input type="radio" name="test" ng-model="radioBtn.name" ng-value="radioValueOne"/> One</label>
   <label><input type="radio" name="test" ng-model="radioBtn.name" ng-value="radioValueTwo"/> Two</label>
   <label><input type="radio" name="test" ng-model="radioBtn.name" ng-value="radioValueThree"/> Three</label>
   <div>currently selected: {{radioBtn.name}}</div>
   <button type="submit">Submit</button>
</form>