public static bool isExistsHeader(DAOContext con, string headerText)
 {
     if (con.Connection.State != ConnectionState.Open) return false;
     bool ret = false;
     MyDummySQLSettingsDAO dao = new MyDummySQLSettingsDAO(con);
     ret = dao.isExistsHeader(headerText);
     return ret;
 }
 public static bool isExistsHeader(string headerText)
 {
     bool ret = false;
     using (DAOContext con = new DAOContext(AccessConstring.SettingConString))
     {
         con.OpenConnection();
         MyDummySQLSettingsDAO dao = new MyDummySQLSettingsDAO(con);
         ret = dao.isExistsHeader(headerText);
         con.CloseConnection();
     }
     return ret;
 }
 public static bool isExistsHeader(string headerText)
 {
     bool ret = false;
     using (DAOContext con = new DAOContext(AccessConstring.SettingConString))
     {
         con.OpenConnection();
         MyDummySQLSettingsDAO dao = new MyDummySQLSettingsDAO(con);
         ret = dao.isExistsHeader(headerText);
         con.CloseConnection();
     }
     return ret;
 }