public SinhVien GetById(string maSV) { try { SinhVien sv = context.GetById(maSV); return(sv); } catch (Exception ex) { Console.WriteLine(ex); return(null); } }
public void DangKy(int maLopTC, string maSV) { try { SinhVienDAO contextSV = new SinhVienDAO(); LopTinChi lpTest = context.GetById(maLopTC); SinhVien sv = contextSV.GetById(maSV); if (lpTest != null && sv != null) { context.DangKy(maLopTC, maSV); } } catch (Exception ex) { Console.WriteLine(ex); } }