private void getDS()
        {
            ////clearControl();
            dg.ItemsSource = xlDT.getDSDonThuocByDS(xlDT.getDSDonThuoc()).ToList();
            //dg.ItemsSource = xlDT.getDSDonThuoc();
            dg.SelectedValuePath = "MaDonThuoc";

            //cmbThuoc.ItemsSource = xlDV.TimMaDV(Common.ConvertToInt(cmbLoaiThuoc.SelectedValue));
            cmbThuoc.ItemsSource       = xlT.getDSThuocFirstNull();
            cmbThuoc.DisplayMemberPath = "TenThuoc";
            cmbThuoc.SelectedValuePath = "IDThuoc";
            cmbThuoc.SelectedIndex     = 0;

            dgCTT.SelectedValuePath = "ThuocID";
            //dgCTDKPK.SelectedValuePath = "PhongKhamID";

            //txtMaPDDK.Text = xlT.taoMaPK();
            //dpNgayLap.Text = DateTime.Now.ToShortDateString();

            //if (Common.maBenhNhan != null)
            //{
            //    txtMaBenhNhan.Text = Common.maBenhNhan.ToString();
            //    epdLPDKK.IsExpanded = true;
            //    txtTenBenhNhan.Text = Common.objBenhNhanM.HoTen.ToString();
            //}
            //if (Common.maNhanVien != null)
            //{
            //    txtNhanVienLP.Text = Common.maNhanVien.ToString();
            //    epdLPDKK.IsExpanded = true;
            //}

            txtMaDT.Text           = xlDT.taoMa().ToString();
            dpNgayLap.SelectedDate = DateTime.Now;
            //test
            if (Common.maNhanVien != null)
            {
                txtNhanVienLP.Text = Common.maNhanVien.ToString();
            }
            txtNhanVienLP.Text      = "bhvu";
            txtMaPhieuKhamBenh.Text = "TRO";
        }