void BindData1()
 {
     Seminar S = new Seminar();
     DataTable dt = S.GetSEMINAR(txtSearchSeminarCitizen.Text, "", "", "", "");
     GridView1.DataSource = dt;
     GridView1.DataBind();
     SetViewState(dt);
 }
        protected void lbuSearch_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txtSearchSeminarCitizen.Text))
            {
                notification.Attributes["class"] = "alert alert_danger";
                notification.InnerHtml = "";
                notification.InnerHtml += "<div><img src='Image/Small/red_alert.png' /><strong>แจ้งเตือน</strong></div>";
                notification.InnerHtml += "<div> - กรุณากรอกรหัสบัตรประชาชนในช่องคำค้นหา</div>";
                return;
            }
            else
            {
                notification.Attributes["class"] = "none";
                notification.InnerHtml = "";
            }
            if (txtSearchSeminarCitizen.Text.Length < 13)
            {
                notification.Attributes["class"] = "alert alert_danger";
                notification.InnerHtml = "";
                notification.InnerHtml += "<div><img src='Image/Small/red_alert.png' /><strong>แจ้งเตือน</strong></div>";
                notification.InnerHtml += "<div> - กรุณากรอกรหัสบัตรประชาชนในช่องค้นหาให้ครบ 13 หลัก</div>";
                return;
            }
            else
            {
                notification.Attributes["class"] = "none";
                notification.InnerHtml = "";
            }

            using (OracleConnection con = new OracleConnection(DatabaseManager.CONNECTION_STRING))
            {
                con.Open();
                string result = "";
                using (OracleCommand com = new OracleCommand("SELECT CITIZEN_ID FROM TB_SEMINAR WHERE CITIZEN_ID = '" + txtSearchSeminarCitizen.Text + "'", con))
                {
                    using (OracleDataReader reader = com.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            result = reader.GetString(0);
                        }
                    }
                }

                if (result == txtSearchSeminarCitizen.Text)
                {
                    Seminar s = new Seminar();
                    DataTable dt = s.GetSEMINAR(txtSearchSeminarCitizen.Text, "", "", "", "");
                    GridView1.DataSource = dt;
                    GridView1.DataBind();
                    SetViewState(dt);

                    notification.Attributes["class"] = "none";
                    notification.InnerHtml = "";
                }
                else
                {
                    notification.Attributes["class"] = "alert alert_danger";
                    notification.InnerHtml = "";
                    notification.InnerHtml += "<div><img src='Image/Small/red_alert.png' /><strong>แจ้งเตือน</strong></div>";
                    notification.InnerHtml += "<div> - ไม่พบข้อมูลของรหัสบัตรประชาชนดังกล่าว</div>";
                    return;
                }
            }
        }