partial void Deleteedu_officerSubject(edu_officerSubject instance);
 partial void Insertedu_officerSubject(edu_officerSubject instance);
 partial void Updateedu_officerSubject(edu_officerSubject instance);
 public bool isEduOfficerSubjectAdded( int subjectID, int edu_officerID )
 {
     edu_officerSubject eos = new edu_officerSubject() {
         subject_ID = subjectID,
         edu_officer_ID = edu_officerID
     };
     try {
         MOE_DB.edu_officerSubjects.InsertOnSubmit( eos );
         MOE_DB.SubmitChanges();
         return true;
     }
     catch (Exception ex) {
         return false;
     }
 }