Change controller scope value from directive AngularJS
<p>I have a condition in which I have input boxes in listing grid and I have a single directive, now I want to send the value to this directive what ever the input value is..up to this point its working fine, but now when I am trying to change the value from directive input box it is not updating the list grid input box for which the value to the directive set.</p>

<p>Here is a working plnkr, let me know what I am doing wrong.</p>

<p><a href="http://plnkr.co/edit/DZdN4itTNccVsuBEJahr?p=preview" rel="nofollow">http://plnkr.co/edit/DZdN4itTNccVsuBEJahr?p=preview</a></p>

<p>My <code>controller</code> &amp; <code>directive</code> code is like -</p>

<pre><code>var myApp = angular.module('myApp', []);

myApp.controller('mainCtrl', function(){
  var vm = this;

  vm.fordirective = '';

  vm.list = [
    {id: "1", name: 'Test 1', age: 35},
    {id: "2", name: 'Test 2', age: 36},
    {id: "3", name: 'Test 3', age: 37},
    {id: "4", name: 'Test 4', age: 38},
  ];
})

myApp.directive('testdir', function(){
  return {
    restrict: 'EA',
    scope: {
      directivevalue: "="
    },
    templateUrl: 'dirtemplate.html',
    link: function(scope, elem, attrs) {

    }
  };
})
</code></pre>