protected void dlSTN_ItemCommand(object source, DataListCommandEventArgs e)
 {
     if (e.CommandName == "STN")
     {
         LinkButton linkButton = e.CommandSource as LinkButton;
         string _year2 = linkButton.Text;
         STN_GetAllTableAdapter stnInfo = new STN_GetAllTableAdapter();
         DataTable dtstnInfo = stnInfo.STN_InfoByYear(_year2, subcategory);
         if (dtstnInfo.Rows.Count > 0)
         {
             Response.Redirect("displayindex.aspx?cat=" + category + "&subcat=" + subcategory + "&year=" + _year2);
         }
     }
 }
        protected void STNotifications()
        {
            STN_GetAllTableAdapter stnadp = new STN_GetAllTableAdapter();
            DataTable dtstn = new DataTable();
            dtstn = stnadp.STN_InfoByYear(year, subcategory);

            if(dtstn.Rows.Count>0)
            {
                gvSTNotification.DataSource = dtstn;
                gvSTNotification.DataBind();
            }
        }