/// <summary>
/// 开启新的事务，使用本对象调用的所有SQL将在事务内执行
/// </summary>
/// <returns></returns>
public IDbTransaction StartTransaction()
{
DataBaseTransaction tra = ContextTransaction;
if (tra == null)
{
tra = new DataBaseTransaction(m_ConnectString, m_DBaseAdapter);
ContextTransaction = tra;
tra.StartTransaction(IsolationLevel.ReadCommitted);
}
tra.ReferenceCount++;
return(tra);
}
/// <summary>
/// 回滚事物
/// </summary>
public void RollbackTransaction()
{
DataBaseTransaction tra = ContextTransaction;
if (tra != null)
{
tra.ReferenceCount--;
if (tra.ReferenceCount == 0)
{
tra.Rollback();
tra.Dispose();
ContextTransaction = null;
}
}
}