private void loadValueFromDatabase() { try { _tableThamSo = objTSBUS.getAllThamSo(); foreach (DataRow dr in _tableThamSo.Rows) { if (dr["TenThamSo"].ToString() == "SLTonToiThieu") { slTonKhoToiThieu = Convert.ToInt32(dr["GiaTri"]); } if (dr["TenThamSo"].ToString() == "SoTienNoToiDa") { soTienNoToiDa = Convert.ToInt32(dr["GiaTri"]); } if (dr["TenThamSo"].ToString() == "ChietKhau") { chietKhau = Convert.ToInt32(dr["GiaTri"]); } } numericUpDown_slTonKhoToiThieu.Value = slTonKhoToiThieu; numericUpDown_soTienNoToiDa.Value = soTienNoToiDa; numericUpDown_chietKhau.Value = chietKhau; } catch (Exception e) { XtraMessageBox.Show("Lỗi load tham số: " + e.Message); } }