protected void OnBtnSaveClicked(object sender, EventArgs e)
    {
        CandidateTelephoneRepository repo = new CandidateTelephoneRepository();
        CandidateTelephone saveItem = GetCadidateTelephone();
        if (string.IsNullOrEmpty(Request.QueryString["TelePhoneId"]))
        {
            if (!string.IsNullOrEmpty(Request.QueryString["candidateID"]))
            {
                //Insert new record
                repo.Insert(saveItem);
            }
            else
            {
                //save to session
                List<CandidateTelephone> list = SessionManager.NewCandidateTelephoneList;
                saveItem.TelePhoneId = 0 - list.Count - 2;
                list.Add(saveItem);
                SessionManager.NewCandidateTelephoneList = list;
            }
        }
        else
        {
            int telephoneID = int.Parse(Request.QueryString["TelePhoneId"]);
            if (telephoneID > 0)//existed in database
            {
                //Update the record.
                saveItem.TelePhoneId = telephoneID;
                repo.Update(saveItem);
            }
            else //get from session data
            {
                List<CandidateTelephone> list = SessionManager.NewCandidateTelephoneList;
                CandidateTelephone existedItem = list.Find(delegate(CandidateTelephone t) { return t.TelePhoneId == telephoneID; });
                if (existedItem != null)
                {
                    int index = list.IndexOf(existedItem);
                    list.Remove(existedItem);
                    saveItem.TelePhoneId = existedItem.TelePhoneId;
                    list.Insert(index, saveItem);
                    SessionManager.NewCandidateTelephoneList = list;
                }
            }
        }
        string script = "<script type=\"text/javascript\">";
        script += " OnBtnSaveClientClicked();";
        script += " </script>";

        if (!ClientScript.IsClientScriptBlockRegistered("redirectUser"))
            ClientScript.RegisterStartupScript(this.GetType(), "redirectUser", script);

        //this.Page.ClientScript.RegisterStartupScript(this.GetType(), this.Page.ClientID, script);
    }