public DataTable LayDSDocGiaNo()
 {
     try
     {
         PhieuThuTienPhatDAO dao = new PhieuThuTienPhatDAO();
         return(dao.LayDSDocGiaNo());
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }
 public int ThemPhieuThuTienPhat(PhieuThuTienPhatDTO pttp)
 {
     try
     {
         PhieuThuTienPhatDAO dao = new PhieuThuTienPhatDAO();
         return(dao.ThemPhieuThuTienPhat(pttp));
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }
 public DataTable DanhSachNhanVienThuQuy()
 {
     try
     {
         PhieuThuTienPhatDAO dao = new PhieuThuTienPhatDAO();
         return(dao.DanhSachNhanVienThuQuy());
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }
 public int UpDatePhieuTra(PhieuThuTienPhatDTO pttp)
 {
     try
     {
         PhieuThuTienPhatDAO dao = new PhieuThuTienPhatDAO();
         int nRow = dao.UpDatePhieuTra(pttp);
         return(nRow);
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }