How to add ng-class to the directive in angularjs

See more:

AngularJs

MVC5

i want to active class on true condition of some call to a function as follows using directives
@*

• {{Style.label}} ({{Style.count}})
  

*@

What I have tried:

AlladinApp.directive('customLabel', customLabel);

function customLabel() {
var directive = {
link: link,
restrict: 'EA',
templateUrl: '/app/customlabel_tmpl.html',
scope: {
listtype: '=',
onselection: '&',
onselect: '&',
listitems:'='
}
};

return directive;
function link(scope, element, attrs) { }
}



folowing is the template



following is what i have replaced in view page for< li>
items

<custom-label listitems="SearchOptions.style" listtype="Style">


Here,onselection is getting the expected result but onselect is not working (ng-class is not working)plase help me.Thanks in advance