public void Bind_DataList()
        {
            var dt = this.conn.GetDataTable("SELECT  * FROM vw_alert_sms order by TGL_SMS asc", null, this.dbtimeout, true, true);

            if (dt.Rows.Count > 0)
            {
                DataList_sms.DataSource = dt;
                DataList_sms.DataBind();
                lb_Sms.Visible = false;
            }
            else
            {
                DataList_sms.DataSource = dt;
                DataList_sms.DataBind();
                lb_Sms.Visible = true;
            }
        }
        protected void cari_Click(object sender, EventArgs e)
        {
            s_unit = ddl_UNIT.SelectedItem.Text;

            var dt = this.conn.GetDataTable("SELECT  * FROM vw_alert_sms where (UNIT =  '" + ddl_UNIT.SelectedValue.ToString() + "' or isnull('" + ddl_UNIT.SelectedValue.ToString() + "' ,'')='')  order by TGL_SMS asc", null, this.dbtimeout, true, true);

            if (dt.Rows.Count > 0)
            {
                DataList_sms.DataSource = dt;
                DataList_sms.DataBind();
                lb_Sms.Visible = false;
            }
            else
            {
                DataList_sms.DataSource = dt;
                DataList_sms.DataBind();
                lb_Sms.Visible = true;
            }
        }