private void LoadData_TKT()
        {
            dtgvTKT_Show.DataSource = null;
            dtgvTKT_Show.DataSource = tBUS.getThuocInfo();

            dtgvTKT_Show.ClearSelection();
            khoaThongTin_TKT();
            tinhTongT();
            loadCbbTKT();
            lstncc = nccBUS.getAllNhaCungCap();
            LoadDataPhongTreeView_TKT(treTKT_ThongKe, lstncc);
            FormatLuoi_TKT(dtgvTKT_Show);
        }
        private void frmQuanLyThuoc_Load(object sender, EventArgs e)
        {
            LoadData_T();
            txtMaThuoc.ReadOnly  = true;
            cbbTimTinhTrang.Text = "(None)";
            cbbTimLoaiThuoc.Text = "(None)";

            cbbTimLoaiThuoc.Items.Add("(None)");
            cbbTimLoaiThuoc.SelectedIndex = 0;
            foreach (DTO_NhaCungCap ncc in nccBUS.getAllNhaCungCap())
            {
                cbbNhaCungCap.Items.Add(ncc.MaNhaCC);
                cbbTimLoaiThuoc.Items.Add(ncc.LoaiThuoc);
            }
            txtTimTenThuoc.Focus();
            formatDTGV();
        }