private void LoadSubjects()
 {
     try
     {
         List <SubjectDTO> oSubjectList = oSubjectBL.GetSubjects();
         dgvSubject.DataSource = oSubjectList;
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }
 private void LoadSubject()
 {
     try
     {
         List <SubjectDTO> oSubjectList = oSubjectBL.GetSubjects();
         cmbSubject.DataSource    = oSubjectList;
         cmbSubject.DisplayMember = "SubjectName";
         cmbSubject.ValueMember   = "SubjectId";
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }