/// <summary>
        /// hàm thực hiện việc cho phép thông tin của phiếu nhập
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cmdUpdatePhieuNhap_Click(object sender, EventArgs e)
        {
            try
            {
                if (!IsValid4UpdateDelete()) return;
                int IdPhieu = Utility.Int32Dbnull(grdList.GetValue(TPhieuNhapxuatthuoc.Columns.IdPhieu), -1);
                frm_themmoi_phieuchuyenkho frm = new frm_themmoi_phieuchuyenkho();
                frm.m_enAction = action.Update;
                frm.KIEU_THUOC_VT = KIEU_THUOC_VT;
                frm.grdList = grdList;
                frm.p_mDataPhieuNhapKho = m_dtDataNhapKho;
                frm.txtIDPhieuNhapKho.Text = Utility.sDbnull(IdPhieu);

                frm.ShowDialog();
                if (frm.b_Cancel)
                {
                    grdList_SelectionChanged(grdList, new EventArgs());
                }
            }
            catch (Exception exception)
            {
                if (globalVariables.IsAdmin)
                {
                    Utility.ShowMsg(exception.ToString());
                }

            }
            finally
            {
                ModifyCommand();
            }
        }
        /// <summary>
        /// hàm thực hiện việc thêm phiếu
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cmdThemPhieuNhap_Click(object sender, EventArgs e)
        {
            try
            {
                frm_themmoi_phieuchuyenkho frm = new frm_themmoi_phieuchuyenkho();
                frm.m_enAction = action.Insert;
                frm.p_mDataPhieuNhapKho = m_dtDataNhapKho;
                frm.grdList = grdList;
                frm.KIEU_THUOC_VT = KIEU_THUOC_VT;
                frm.txtIDPhieuNhapKho.Text = "-1";
                frm.ShowDialog();
                if (frm.b_Cancel)
                {
                    grdList_SelectionChanged(grdList, new EventArgs());
                }
            }
            catch (Exception exception)
            {
                if (globalVariables.IsAdmin)
                {
                    Utility.ShowMsg(exception.ToString());
                }

            }
            finally
            {
                ModifyCommand();
            }
        }