public void Xoa(ChiTietKhenThuongEntity pb)
        {
            KetNoiCSDL.MoKetNoi();
            string     sql = @"DELETE tblChiTietKhenThuong WHERE MaKT=@MaHD and MaNV=@MaNV";
            SqlCommand cmd = new SqlCommand(sql, KetNoiCSDL.connect);

            cmd.Parameters.AddWithValue("@MaHD", pb.MaKT);
            cmd.Parameters.AddWithValue("@MaNV", pb.MaNV);
            cmd.ExecuteNonQuery();
            KetNoiCSDL.DongKetNoi();
        }
        public void Them(ChiTietKhenThuongEntity pb)
        {
            KetNoiCSDL.MoKetNoi();
            string     themhd = @"INSERT INTO tblChiTietKhenThuong(MaKT, MaNV,NgayKhenThuong,TienKhenThuong,GhiChu) VALUES(@MaPB,@TenPB,@DiaDiem,@SDT,@GhiChu)";
            SqlCommand cdm    = new SqlCommand(themhd, KetNoiCSDL.connect);

            // cdm.CommandType = CommandType.StoredProcedure;
            cdm.Parameters.AddWithValue("@MaPB", pb.MaKT);
            cdm.Parameters.AddWithValue("@TenPB", pb.MaNV);
            cdm.Parameters.AddWithValue("@DiaDiem", pb.NgayKhenThuong);
            cdm.Parameters.AddWithValue("@SDT", pb.TienKhenThuong);
            cdm.Parameters.AddWithValue("@GhiChu", pb.GhiChu);
            cdm.ExecuteNonQuery();
            KetNoiCSDL.DongKetNoi();
        }
        public void Sua(ChiTietKhenThuongEntity pb)
        {
            KetNoiCSDL.MoKetNoi();
            string     themhd = @"UPDATE tblChiTietKhenThuong SET NgayKhenThuong =@NgayBatDau, TienKhenThuong =@NgayKetThuc, GhiChu =@GhiChu Where MaKT=@MaHD and MaNV=@MaNV";
            SqlCommand cdm    = new SqlCommand(themhd, KetNoiCSDL.connect);

            // cdm.CommandType = CommandType.StoredProcedure;
            cdm.Parameters.AddWithValue("@NgayBatDau", pb.NgayKhenThuong);
            cdm.Parameters.AddWithValue("@NgayKetThuc", pb.TienKhenThuong);
            cdm.Parameters.AddWithValue("@GhiChu", pb.GhiChu);
            cdm.Parameters.AddWithValue("@MaHD", pb.MaKT);
            cdm.Parameters.AddWithValue("@MaNV", pb.MaNV);

            cdm.ExecuteNonQuery();
            KetNoiCSDL.DongKetNoi();
        }