private void searchHocPhiCuaSinhVien(string maSV) { try { DataTable dtStudent = HelperCommon.queryDataByOneCondition("SINHVIEN", "MASV", maSV); BindingSource bdsStudent = new BindingSource(); bdsStudent.DataSource = dtStudent; string maLop = studentService.getClassId(bdsStudent); string hoTen = studentService.getFullname(bdsStudent); string gender = studentService.getGender(bdsStudent) == true ? "Nam" : "Nữ"; initStudentInfo(maSV, hoTen, maLop, gender); txtMaSV.Text = maSV; searchResult = true; if (maLop == "" || hoTen == "") { searchResult = false; } } catch (Exception ex) { MessageBox.Show("Không tìm thấy kết quả phù hợp.", "", MessageBoxButtons.OK); Debug.Print(ex.StackTrace); searchResult = false; return; } }