未能在指令中使用rootscope＆＃34;无法读取属性$ emit of undefined＆＃34;

Question

这是我的代码我收到错误＆＃34;无法读取属性$ emit of undefined＆＃34;哪里出错了？

.directive('managesubcategorybusinesses',function()
 {
    return function(scope,element,attrs,$rootScope)
    {
        element.bind("click",function()
        {
            scope.getBusinesses(attrs.subcategoryid,function(data)
            {

                $rootScope.$emit("CallSubcategoryBusinesses",{data : data});
                console.log("tadaa");
            })


        });

    };
 })

Answer 1

你必须使用范围代替$ rootscope

scope.$emit