对于COM+组件，关于使用UsesTransaction和RequiresTransactoin的问题

[jd29323]

假如我要在组件中实现SELECT、INSERT、UPDATE表的操作
那我的这个组件应该使用UsesTransaction还是RequiresTransactoin？

[sclxp]

如果上层组件为需要事务，此组件可为支持事务，否则应为需要事务。

[fantong]

UsesTransaction can use in the transaction which created by other component,but if there is no transaction,com+ does not create a new transation for it.RequiresTransactoin say the component must use in a transaction ,if not in a transaction ,com+ create one for it.Require new transaction make com+ create a new transaction ,no matter there is one or not.

[fantong]

Give me credits!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!