public string LayGiaDichVuKhac(int madv) { string sql = "Select DonGia from DichVu where MaDV = " + madv + "and LoaiDV = 0"; return(dp.ExecuteScalar_(sql)); }
public string LayTenNhanVien(int manv) { string sql = "Select TenNV from NhanVien where MaNV = " + manv + ""; return(dp.ExecuteScalar_(sql)); }