System.Data.DataSet.RejectChanges C# (CSharp) Method

        public virtual void RejectChanges()
        {
            long logScopeId = DataCommonEventSource.Log.EnterScope("<ds.DataSet.RejectChanges|API> {0}", ObjectID);
            try
            {
                bool fEnforce = EnforceConstraints;
                EnforceConstraints = false;
                for (int i = 0; i < Tables.Count; i++)
                {
                    Tables[i].RejectChanges();
                }
                EnforceConstraints = fEnforce;
            }
            finally
            {
                DataCommonEventSource.Log.ExitScope(logScopeId);
            }
        }

 public static void EditFallidasRemoteServer(DataSet dt, ref int? codigoError, bool grabarFallidas)
 {
     MySqlTransaction tr = null;
     try
     {
         MySqlConnection SqlConnection1 = DALBase.GetRemoteConnection();
         SqlConnection1.Open();
         DAL.FondoCajaDAL.GrabarDB(dt, SqlConnection1);
         SqlConnection1.Close();
         BL.FallidasBLL.BorrarFondoCajaFallidasByAccion("Modified");
     }
     catch (MySqlException ex)
     {
         if (ex.Number == 1042) //no se pudo abrir la conexion por falta de internet
         {
             dt.RejectChanges();
             codigoError = 1042;
         }
         else
         {
             dt.RejectChanges();
             if (tr != null)
             {
                 tr.Rollback();
             }
             codigoError = ex.Number;
         }
     }
     catch (TimeoutException)
     {
     }
 }