public ICollection <BillingDetail> colGetBillingDetail4DC(string argDeliveryDocCode, string argClientCode, List <BillingDetail> lst) { DataSet DataSetToFill = new DataSet(); DeliveryDetail tDeliveryDetail = new DeliveryDetail(); DeliveryDetailManager objDeliveryDetailManager = new DeliveryDetailManager(); DataSetToFill = objDeliveryDetailManager.GetDeliveryDetail4BD(argDeliveryDocCode, argClientCode); if (DataSetToFill != null) { foreach (DataRow dr in DataSetToFill.Tables[0].Rows) { lst.Add(objCreateBillingDetail(dr)); } } goto Finish; Finish: DataSetToFill = null; return(lst); }