传入实体执行（可添加 修改 删除）事务。
IDbHelper dbHelper = new OracleHelper(ConfigHelper.GetConfigString("BusinessDbConnection"));
bool result = true;
try
{
dbHelper.BeginTransaction();
//主表
TE_AREAManager manager = new TE_AREAManager(dbHelper， userInfo);
TE_AREAEntity tE_AREAEntity = manager.GetObject(dbHelper.SqlSafe(eatxtAREA_ID));
manager.Delete(tE_AREAEntity);
//子表
TE_AREA_SUBManager submanager = new TE_AREA_SUBManager(dbHelper， userInfo);
TE_AREA_SUBEntity tE_AREA_SUBEntity = submanager.GetObject(dbHelper.SqlSafe(eatxtAREA_ID));
submanager.Delete(tE_AREA_SUBEntity);
//事务提交
dbHelper.CommitTransaction();
}
catch(Exception ex)
{
//事务回滚
dbHelper.RollbackTransaction();
result=false;
}
　　可以传入sql语句执行事务
IDbHelper dbHelper = new OracleHelper(ConfigHelper.GetConfigString("BusinessDbConnection"));
bool result = true;
try
{
dbHelper.BeginTransaction();
string   commandText = " DELETE FROM TE_AREA WHERE ID=" + dbHelper.SqlSafe(id);
dbHelper.ExecuteNonQuery(sqlString);
commandText = " DELETE FROM TE_AREA_SUB WHERE ID=" + dbHelper.SqlSafe(id);
dbHelper.ExecuteNonQuery(commandText);
dbHelper.CommitTransaction();
}
catch(Exception ex)
{
dbHelper.RollbackTransaction();
result=false;
}