private LoadOperation <Web.Model.taxpayer> LoadTaxPayerEntities()
        {
            IsBusy = false;
            EntityQuery <DocumentManager.Web.Model.taxpayer> lQuery = documentManagerContext.GetTaxpayerQuery();

            lQuery = lQuery.Where(c => (c.taxpayer_group_id == 3));


            lQuery = TaxPayerSearch.CreateQuery(lQuery);

            return(documentManagerContext.Load(lQuery.SortAndPageBy(this.taxPayerView)));
        }