public bool Update(List <EntityCommand> listEntityActionCommand)
        {
            int commandindex = 0;

            if (MainConnection.State == ConnectionState.Closed)
            {
                MainConnection.Open();
            }
            var transaction = MainConnection.BeginTransaction();
            var command     = new SqlCommand[listEntityActionCommand.Count];

            try
            {
                foreach (var entityActionCommand in listEntityActionCommand)
                {
                    var entity     = EntityManager.Instance.GetMyEntity(entityActionCommand.BaseEntity.GetName());
                    var sqlCommand = entity.GetSqlCommand(entityActionCommand);
                    sqlCommand.Connection  = MainConnection;
                    sqlCommand.Transaction = transaction;
                    command[commandindex]  = sqlCommand;
                    sqlCommand.ExecuteNonQuery();
                    entity.UpdateEntityId(entityActionCommand, sqlCommand);
                    commandindex++;
                }
                transaction.Commit();
                return(true);
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                throw new Exception("UpdateEntitySql::Update::Error occured.", ex);
            }
            finally
            {
                MainConnection.Close();
                for (int i = 0; i < listEntityActionCommand.Count; i++)
                {
                    command[i].Dispose();
                }
            }
        }