public static List<QualificationModel> GetQualificationDetails()
        {
            SqlConnection con = DBUtils.getDBConnection();
            con.Open();

            SqlCommand command = new SqlCommand("select qualification_id, qualification, type from dbo.Qualification;", con);
            SqlDataReader reader = command.ExecuteReader();

            List<QualificationModel> qualificationList = new List<QualificationModel>();
            while (reader.Read())
            {
                QualificationModel qual = new QualificationModel();
                qual.qualification_id = Convert.ToInt32(reader[0]);
                qual.qualification = Convert.ToString(reader[1]);
                qual.type = Convert.ToString(reader[2]);

                qualificationList.Add(qual);
            }

            con.Close();
            return qualificationList;
        }
        public static List<QualificationModel> GetCandidateEducationDetails(int user_id)
        {
            SqlConnection con = DBUtils.getDBConnection();
            con.Open();

            SqlCommand command = new SqlCommand(" select graduation, post_graduation from dbo.Applicant where candidate_id=" + user_id + ";", con);
            command.ExecuteNonQuery();

            Dictionary<string, string> idToName = GetQualificationsIdToName();

            List<QualificationModel> qualifications = new List<QualificationModel>();
            SqlDataReader reader = command.ExecuteReader();
            if(reader.Read())
            {
                string ug = reader.GetString(0);
                string pg = reader.GetString(1);

                foreach (var item in ug.Split(','))
                {
                    if (item.Length == 0)
                        continue;

                    QualificationModel model = new QualificationModel();
                    model.qualification_id = Convert.ToInt32(item);
                    model.qualification = idToName[item];
                    model.type = "UG";

                    qualifications.Add(model);
                }

                foreach (var item in pg.Split(','))
                {
                    if(item.Length == 0)
                        continue;

                    QualificationModel model = new QualificationModel();
                    model.qualification_id = Convert.ToInt32(item);
                    model.qualification = idToName[item];
                    model.type = "PG";

                    qualifications.Add(model);
                }

            }
            reader.Close();
            con.Close();

            return qualifications;
        }