public static string strMaNVOld, strHoOld, strTenOld; // gia tri ho ten luc moi tim, dung de so sanh khi nhap phong TH ng dung sua thong tin sau khi tim duoc cnvc // se duoc gan khi double click nv o gridview ds public ThoiBoNhiem() { InitializeComponent(); oDonVi = new DonVi(); oChucVu = new ChucVu(); oThoiNhiem = new Business.HDQD.ThoiNhiem(); }