private void GiamThoiGian()
        {
            string s_ID = this.s_MaBN;

            if (this.s_MaBN.Length < 2)
            {
                s_ID = "0" + this.s_MaBN;
            }
            string s_ModeTangGiam = "0"; //Giảm
            string str            = "#TIME," + s_ID + "," + s_ModeTangGiam + "," + i_TGConLai.ToString() + ",*";

            if (i_TGConLai > 0)
            {
                byte[] data = System.Text.Encoding.UTF8.GetBytes(str);
                TienIch.ComPort.serialPort_Send(data, 0, data.Length);

                i_TongTG -= i_TGConLai;
                if (i_TongTG < 0)
                {
                    i_TongTG = 0;
                }
                DsBanNang ds = new DsBanNang();
                ds.UpdateThoiGianSuaChua(this.conn, this.s_MaBN, Convert.ToInt16(i_TongTG));
            }
        }
        private void ChinhThoiGian(bool b_Tang)
        {
            string s_ID = s_IDBanNang;

            if (s_IDBanNang.Length < 2)
            {
                s_ID = "0" + s_IDBanNang;
            }
            int    i_TGPhatSinh   = Convert.ToInt32(txtThoiGianThayDoi.Text.ToString());
            string s_TGPhatSinh   = i_TGPhatSinh.ToString();
            string s_ModeTangGiam = b_Tang == true ? "1" : "0";
            string str            = "#TIME," + s_ID + "," + s_ModeTangGiam + "," + s_TGPhatSinh + ",*";

            if (i_TGPhatSinh > 0)
            {
                byte[] data = System.Text.Encoding.UTF8.GetBytes(str);
                TienIch.ComPort.serialPort_Send(data, 0, data.Length);
                if (b_Tang)
                {
                    i_TongTG += i_TGPhatSinh;
                }
                else
                {
                    i_TongTG -= i_TGPhatSinh;
                    if (i_TongTG < 0)
                    {
                        i_TongTG = 0;
                    }
                }
                DsBanNang ds = new DsBanNang();
                ds.UpdateThoiGianSuaChua(this.conn, this.s_IDBanNang, Convert.ToInt16(i_TongTG));
            }
        }