Angular Js如何在指令中访问$ scope

Question

I created directive for form controls[input, select and radio], Each input have default value, if $scope.answers have this input value then this value should show in input box.

Below code is not working from link fucntion

if($scope.answers.PC && $scope.answers.PC != '')
                {
                    element.val = $scope.answers.PC;
                }

Directive function

function textControlDir()
    {
        return {
            transclude: true,
            restrict: 'E',
            scope: {
                queObj: '=',
                },
            template: '<div class="form-group">\n\
<label for="{{queObj._attributeName}}" class="col-sm-5 control-label">{{queObj._text}}</label>\n\
<div class="col-sm-6"><input type="text" name="{{queObj._attributeName}}" class="form-control" id="{{queObj._attributeName}}" value="{{queObj._pageAttributes.defaultValue}}"></div>\n\
</div>'
            ,
            link: function ($scope,scope, element, attrs)
            {
                if($scope.answers.PC && $scope.answers.PC != '')
                {
                    element.val = $scope.answers.PC;
                }
                console.log($scope);
            }
        };
    }

HTML

<text-control-dir data-que-obj="que.QuestionData"></text-control-dir>

Answer 1

You don't have access to the $scope in the directives directly but as you have a link function you can access the scope to the respective directive. Yet you can't set values like you are doing currently .val is a wrong way to set:

link: function(scope, element, attrs) {
    if (scope.answers && scope.answers !== undefined) {
      element.find('input').val(scope.answers.PC); // <---this is the way to set value
    }else{
      element.find('input').val('No vales found!!!');
    }
  }

Where element is the wrapper element div and you have to .find('input') ¹ the text input placed inside it.

_{1. If jQuery library is not included before angular, angular will use jqLite and where .find() method is restricted to have a lookup of tagNames only.}

Plnkr

---

Just saw, your scope doesn't have answers property. So, that won't work.