public List <MainDto> GetRootMembersWithTimeTrackings([FromUri] string selectedDate)
        {
            //http://docs.orchardproject.net/Documentation/custom-permissions
            //var user = _authenticationService.GetAuthenticatedUser();
            if (!_orchardServices.Authorizer.Authorize(Permissions.EditOwnTimeRegistrations, T("Couldn't add comment")))
            {
                //todo block this method
            }
            var selectedDateTime = DateTime.Parse(selectedDate);
            var startDate        = selectedDateTime.DateFromDateAndWeekday(DayOfWeek.Monday);
            var endDate          = startDate.AddDays(6);
            var result           = _timeRegistrationService.GetMembersWithTimeRegistrations(null, startDate, endDate);

            return(result);
        }