Пример #1
0
        public LIS_ORCAMENTOCollection ReadCollection()
        {
            FbDataReader dataReader = null;

            try
            {
                LIS_ORCAMENTOCollection collection = null;

                //Verificando a existência de um transação aberta
                if (dbTransaction != null)
                {
                    if (dbCnn.State == ConnectionState.Closed)
                    {
                        dbCnn.Open();
                    }

                    dbCommand             = new FbCommand("SELECT * FROM LIS_ORCAMENTO", dbCnn);
                    dbCommand.Transaction = ((FbTransaction)(dbTransaction));
                }
                else
                {
                    if (dbCnn == null)
                    {
                        dbCnn = ((FbConnection)GetConnectionDB());
                    }

                    if (dbCnn.State == ConnectionState.Closed)
                    {
                        dbCnn.Open();
                    }

                    dbCommand             = new FbCommand("SELECT * FROM LIS_ORCAMENTO", dbCnn);
                    dbCommand.Transaction = dbCnn.BeginTransaction(IsolationLevel.ReadCommitted);
                }

                // Tipo do comando de banco Procedure ou SQL
                dbCommand.CommandType = CommandType.Text;

                collection = ExecuteReader(ref collection, ref dataReader, dbCommand);

                if (dataReader != null)
                {
                    dataReader.Close();
                    dataReader.Dispose();
                }

                if (dbTransaction == null)
                {
                    dbCommand.Transaction.Commit();
                    dbCnn.Close();
                }

                return(collection);
            }
            catch (Exception ex)
            {
                // Deleta reader
                if (dataReader != null)
                {
                    dataReader.Close();
                    dataReader.Dispose();
                }

                if (dbTransaction != null)
                {
                    this.RollbackTransaction();
                }
                else
                {
                    if (dbCommand.Transaction != null)
                    {
                        dbCommand.Transaction.Rollback();
                    }
                    if (dbCnn.State == ConnectionState.Open)
                    {
                        dbCnn.Close();
                    }
                }

                throw ex;
            }
        }