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Need to get value of the radio button and pass it to the backend using HTML and angularJS,and the data displayed in the frontend is a list

//This is my HTML code wherein am returning a list from backend.
<ul>
<li ng-repeat=" opt in bcfList1 track by $index" > <input type="radio" name="buildid" id="buildid" ng-model = $parent.selected ng-value="bcfList1" required>
{{ opt }}
</li>
</ul>
//This is my controller.js program
$scope.getDetails =function(data){
var id=data.id;
$('#addNode3').modal('show');
UpgradeService.getDataById(id).then(function(data){
if(data!=null){
$scope.List1=data.BUILDNUMBER;
}
});
}
I need to get the string value that'll be listed in front of the radio button. So once I click on radio button it should send that value to the controller.js
By using ng-model I need a solution.
Help me out!!

You need to add ng-change to your input fields with a call to that function. Here is a quick demo:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.b = [1, 2, 3, 4, 5, 6, 7, 8, 9];
$scope.getDetails = function(index) {
console.log("sending data", index,$scope.selected);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<div ng-repeat="a in b track by $index">
<input type="radio" ng-model="$parent.selected" ng-value="a" ng-change="getDetails($index)" /> {{a}}
</div>
</div>

If I understand correctly, you need to gather which input type radio was clicked in controller and send this information to backend.
ng-model directive is very good approach here and you can use it just like so:
html
<label>
One
<input type="radio" value="one" ng-model="radio">
</label>
<label>
Two
<input type="radio" value="two" ng-model="radio">
</label>
<br><br>{{ radio }}<br>
JS
app.controller('MainCtrl', function($scope) {
$scope.radio = '';
$scope.consoleLogRadio = function() {
console.log($scope.radio);
}
});
Take a look at plunker example

Angular JS /Angular Material .How to validate Checkbox group on click?

I am using Angular Material and i am doing a simple validation with checkboxes.
The Problem :
At least One checkbox should be checked.
1-If i click a checkbox and then i click again,the "required message" is not shown.
2-If i click a checkbox and then i click again,and press "Tab Key" going throught each checkbox pressing Tab,when i reach the last one and press Tab Key,the message "Required" appears.
I want that ,condition number 1 occurs too,and one more thing ,i dont want to show the "required" message when the application loads. Here is my example : https://codepen.io/anon/pen/zrjjyL
I Hope you can give me a hand,Thanks!!!!!
Code :
HTML:
<form name="myForm" ng-app="myApp" ng-controller="myController"
class="container-fluid" ng-submit="submit()">
<div class="row">
<div class="col-xs-8">
<md-input-container md-no-float>
<label>Name *</label>
<input required="" name="nombre" ng-model="model.nombre">
<div ng-messages="myForm.nombre.$error" ng-
show="myForm.nombre.$touched || myForm.$submitted">
<div ng-message="required">Required.</div>
</div>
</md-input-container>
<md-input-container md-no-float>
<label>Search Options *</label>
<input type="text" id="query" ng-model="query"/>
</md-input-container>
<md-input-container md-no-float>
<md-list-item ng-repeat="item in items | filter:query">
<p style ="font-size: 1.3rem;font-family: Roboto,'Helvetica
Neue',sans-serif"> {{ item.title }} </p>
<md-checkbox name ="permiso" ng-
model="model.opciones[item.id]['checked']" ng-required="!isChecked" ></md-
checkbox>
</md-list-item>
<div ng-messages="myForm.permiso.$error" ng-show=" myForm.permiso.$touched
|| myForm.$submitted">
<div ng-message="required">Required.</div>
</md-input-container>
</div> </div>
JS:
var app = angular.module('myApp', ['ngAnimate', 'ngAria', 'ngMaterial',
'ngMessages'])
.controller('myController', function($scope) {
$scope.items = [{
id: 1,
title: 'Item A'
}, {
id: 2,
title: 'Item A'
}, {
id: 3,
title: 'Item C'
}];;
$scope.model = {}
$scope.model.opciones = {};
$scope.isChecked = false;
$scope.$watch('model.opciones', function(selected) {
$scope.isChecked = false;
angular.forEach(selected, function(selectedItem) {
if (selectedItem.checked) $scope.isChecked = true;
});
}, true);
});

You can check if the form has been modified with formName.$dirty. Then you can only show the error if the form is actually dirty.
<div ng-message="required" ng-if="myForm.$dirty">Required.</div>

You are iterating over your items and overwriting the myFrom.permiso with each new item which means myForm.permiso is always the model of the last item in your items. That is why, when you tab through them, only the last change registers.
You should remove the name attribute of the checkboxes and add a ng-change handler instead of the $watch.
And you add a hidden checkbox for the permiso model which you update on change.
https://codepen.io/kuhnroyal/pen/LGrzGv

Adding text box in select options using Angular

I have a requirements, in which I have to show a combo-box (select). The options in it aren't fixed, I need to give a link to add more options, on whose click a text box must be shown within the select element, user will enter a value and it will be added in select's options. Please tell me how this can be achieved using Angular. jQuery provides a way to do that, but if i use that I am not able to bind the elements with Angular.
Regards
Nitin

Javascript file:
function ctrl($scope){
$scope.rows = ['Paul','John','Lucie'];
$scope.addRow = function(){
$scope.rows.push($scope.addName);
$scope.addName = "";
};
}
HTML page:
<body ng-controller="ctrl">
<select>
<option ng-repeat="row in rows" value="{{ row }}">{{ row }}</option>
</select>
<span class="input-append">
<input id="add" type="text" placeholder="Another one ?" ng-model="addName" />
<input type="submit" class="btn btn-primary" ng-click="addRow()" value="+ add" />
</span>
</body>
See: http://codepen.io/anon/pen/JdqqXj

I'd suggest that you take a look at the docs dedicated to the select control in AngularJS. In a nutshell, you can use the ngRepeat to generate the options for you. If you need to get them from a backend, you can use resolve in your routing options and a service to grab them for you.
The example by AngularJs's website:
HTML
<div ng-controller="ExampleController">
<form name="myForm">
<label for="repeatSelect"> Repeat select: </label>
<select name="repeatSelect" ng-model="data.repeatSelect">
<option ng-repeat="option in data.availableOptions" value="{{option.id}}">{{option.name}}</option>
</select>
</form>
<hr>
<tt>repeatSelect = {{data.repeatSelect}}</tt><br/>
</div>
APP.JS
angular.module('ngrepeatSelect', [])
.controller('ExampleController', ['$scope', function($scope) {
$scope.data = {
singleSelect: null,
availableOptions: [
{id: '1', name: 'Option A'},
{id: '2', name: 'Option B'},
{id: '3', name: 'Option C'}
],
};
}]);
You can also use ng-options, which is more recommended.
In regards to the textbox element, associate the two elements with ng-model.
Example:

AngularJS - submit form with checkboxes via ajax

I have a form with checkboxes and other input fields.
The data-ns-form directive is used for submitting form data via ajax. The controller for this form is UserController.
HTML
<div ng-controller="UserController">
<form data-ns-form="formData">
Full Name : <input type="text" name="fullname" ng-model="formData.fullname" />
Favourite Beverage :
<label>
<input type="checkbox" name="beverages[]" ng-model="formData.beverages[0]" value="coffee"> Coffee
</label>
<label>
<input type="checkbox" name="beverages[]" ng-model="formData.beverages[1]" value="tea"> Tea
</label>
<label>
<input type="checkbox" name="beverages[]" ng-model="formData.beverages[2]" value="colddrinks"> Cold Drinks
</label>
<button type="submit"> Send </button>
</form>
</div>
Controller
app.controller('UserController', function($scope){
$scope.formData = {fullname : '', beverages : []};
});
Directive
app.directive('nsForm', function(){
return {
restrict : "A",
scope: {
formData : "=nsForm"
},
link : function(scope, iElem, iAttr) {
$(iElem).on('submit', function(e) {
e.preventDefault();
console.log("FORM DATA");
console.log(scope.formData);
});
}
}
});
A little description
When I submit the form I get boolean TRUE for checked checkboxes, but instead I want the value inside the value attirbute. For instance, If I checked 'coffee' and 'Cold Drinks', I get beverages=[true,false,true], but what do I want is beverages['coffee','colddrink'].
What is the AngularJS way of doing it?
And Also.
Is there any preferred way of submitting form in AngularJS instead of creating directives myself ?

I don't see any reason for the "name" attribute here. You need to use ng-click with a function to save your data - and that should be taken care of by a service. There's a lot you can do with angular...search the docs for anything you're doing (see checkboxes in the docs, for example).
Live demo here (click).
<div ng-controller="UserController">
Favourite Beverage :
<label>
<input type="checkbox" ng-model="formData.beverages[0]" ng-true-value="coffee">Coffee
</label>
<label>
<input type="checkbox" ng-model="formData.beverages[1]" ng-true-value="tea">Tea
</label>
<label>
<input type="checkbox" ng-model="formData.beverages[2]" ng-true-value="colddrinks">Cold Drinks
</label>
<button ng-click="save()"> Send </button>
</div>
js:
var app = angular.module('myApp', []);
app.factory('myService', function($http) {
var myService = {
save: function(data) {
//your ajax call here
console.log(data);
}
};
return myService;
});
app.controller('UserController', function($scope, myService) {
$scope.formData = {};
$scope.formData.beverages = [];
$scope.save = function() {
myService.save($scope.formData);
};
});
Also, you should probably have all of your data (the drink values, for example) in your javascript rather than the html, then bind it to the page. Or in the database, then into js, then onto the page. That all depends on how dynamic your information needs to be - just be sure to think ahead.

Angular: radiobuttons stop firing "ng-change" after each one was clicked

I am building radio buttons dynamically. ng-change='newValue(value) stops being called after each radio button has been pressed once.
this works: Clicking on the radio buttons changes the value to foo/bar/baz.
http://jsfiddle.net/ZPcSe/19/
<div ng-controller="MyCtrl">
<input type="radio" ng-model="value" value="foo" ng-change='newValue(value)'>
<input type="radio" ng-model="value" value="bar" ng-change='newValue(value)'>
<input type="radio" ng-model="value" value="baz" ng-change='newValue(value)'>
<hr>
{{value}}
</div>
this code does not: The {{value}} - "label" is not updated once each radio button has been pressed at least once. Aparently ng-change is not fired any more.
<div ng-controller="MyCtrl">
<span ng-repeat="i in [0, 1, 2]">
<input name="asdf" type="radio" ng-model="value" value={{i}} ng-change='newValue(value)'>
</span>
{{value}}
</div>
http://jsfiddle.net/ZPcSe/18/
The Controlles is the same each time:
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.value = '-';
$scope.newValue = function(value) {
$scope.value = value;
}
}
Thanks for your help.

ngRepeat creates new scope, so trying to set value sets it on the new scope. The workaround is to reference a property on an object that is on the parent scope--the object lookup happens on the parent scope, and then changing the property works as expected:
HTML:
<div ng-controller="MyCtrl">
<span ng-repeat="i in [0, 1, 2]">
<input name="asdf" ng-model="options.value" value="{{i}}" type="radio">
</span>
{{options.value}}
JS:
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.options = {
value: '-'
};
$scope.newValue = function(value) {
// $scope.options.value = value; // not needed, unless you want to do more work on a change
}
}​
You can check out a working fiddle of this workaround. See angular/angular.js#1100 on GitHub for more information.

Just a quick work-around, we can achieve the same- using ng-model="$parent.value", because it would refer to the parent of ng-repeat scope i.e- in myCtrl scope
Only Change in ng-model-
<input name="asdf" type="radio" ng-model="$parent.value" value={{i}} ng-change='newValue(value)'>
Here is the fiddle

Try ng-click instead of ng-change.