IR Punch IR Punch - 4 months ago 83
JSON Question

Bind JSON Object as a Value in AngularJS HTML Select - Dropdown

I'm having a JSON collection

$scope.person = [
{
"Id": 1
"Name": "John"
},
{
"Id": 2
"Name": "Jack"
},
{
"Id": 3
"Name": "Watson"
},
];


In the HTML, I bind the above Collection in AngularJS HTML Select. The Complete HTML Source Code is



<!DOCTYPE html>
<html>
<head>
<title>HTML Select using AngularJS</title>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
</head>
<body>

<div ng-app="myApp" ng-controller="myCtrl">

<div class="md-block">
<label>Person</label>
<select ng-model="selected.person">
<option ng-repeat="key in person | orderBy:Id" value="{{key}}">({{key.Name}})</option>
</select>
</div>

</div>

<script>
var app = angular.module('myApp', []);

app.controller('myCtrl', function ($scope) {

$scope.person = [
{
"Id": 1,
"Name": "John"
},
{
"Id": 2,
"Name": "Jack"
},
{
"Id": 3,
"Name": "Watson"
}
];

$scope.selected = {
person: null
};

$scope.$watchCollection('selected.person', function (newData, oldDaata) {
var obj = JSON.parse(newData);
if ((obj != undefined) && (obj != null) && (obj.Id != undefined) && (obj.Id != null) && (obj.Id != "0")) {
var name = obj.Name;
alert(name);
}
});

});
</script>
</body>
</html>





I Selected Jack in the Drop Down, My Expected Selected Value is

{
"Id": 2
"Name": "Jack"
}


But I'm getting the Value is in the form of String
"{"Id":2,"Name":"Jack"}"


enter image description here

Kindly assist me, how to get the Value as a JSON object...

Answer

You can just do the following to get the JSON Object:

JSON.parse(yourJsonString); 

So your code should look like:

 var newDataJSON = JSON.parse(newData)
 var name = newDataJSON.Name
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