$http.get('/EmployeeList/Index')
        .then(function (response) {
            vm.gridOptions.data = response.data.Item2;
            vm.gridOptions.columnDefs = response.data.Item1;
         });

foreach (AngularPrototypeServiceReference.EmployeeDTO item in elist)
            {
                string id = String.Concat("Id", count); count++;
                columnDefs.Add(String.Concat("displayName: '", id,"', name: '", id,"', field: '", id,"', width: 48;"));

            } 

            Tuple<List<string>, List<AngularPrototypeServiceReference.EmployeeDTO>> result = new Tuple<List<string>, List<AngularPrototypeServiceReference.EmployeeDTO>>(columnDefs, elist);

            return Json(result, JsonRequestBehavior.AllowGet);