self.getModel = function () {
            return {
                **TypeMembers: self.selectedTypevalues(),**
                SelectedFrequency: self.selectedFrequency(),
                MembershipId: self.membershipId(),
                Customer: $('#customers-list').data('kendoAutoComplete').value(),
            };

private IEnumerable<ReportItem> GetGridItems(ReportViewModel viewModel)
 {
        var membertypeValues = viewModel.TypeMembers.Select(zx =>
        zx.Id.ToInteger());
 }