private void LoadSalesData()
 {
     CD_DomainContext context = new CD_DomainContext();
     string cdIds = DBUtils.Get_CD_ProductIDs(Utils.GetBrandCode(_productBrand));
     if (GetDosageSaCodes() != "")
         cdIds = DBUtils.GetCdProductIds(GetDosageSaCodes());
     if (this._regionType == SanofiRegionTypes.Province)
         context.Load(context.GetProvince_PerCustomer_PerChannelQuery(cdIds, _startDate, _endDate, DBUtils.Get_CD_ProvinceIds(_groupRegionMapId, _productBrand)), ProvincePerCustomerPerChannel_Callback, null);
     else if (this._regionType == SanofiRegionTypes.TotalIR)
         context.Load(context.GetTotal_PerCustomer_PerChannelQuery(cdIds, _startDate, _endDate), TotalPerCustomerPerChannel_Callback, null);
 }