//thêm 1 billinfo public void addBillinfo(billInfo billInfo) { db = new CitiZoneDataContext(); billInfo bifo = new billInfo(); bifo = billInfo; db.billInfos.InsertOnSubmit(bifo); db.SubmitChanges(); }
//thêm 1 billinfo public void addBillinfo(billInfo billInfo) { billinfoDAO.addBillinfo(billInfo); }