TransactionScope 和数据库连接
TransactionScope 是否适用于关闭的数据库连接？
using (var transaction = new TransactionScope(TransactionScopeOption.Required))
{
// creates a new connection, does stuff, commit trans and close
repos1.DoSomething();
// creates a new connection, does stuff, commit trans and close
repos2.DoSomething();
transaction.Complete();
}
Do TransactionScope work with closed database connections?
using (var transaction = new TransactionScope(TransactionScopeOption.Required))
{
// creates a new connection, does stuff, commit trans and close
repos1.DoSomething();
// creates a new connection, does stuff, commit trans and close
repos2.DoSomething();
transaction.Complete();
}
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是的，那应该可以正常工作。在内部，连接应保持打开状态，直到事务完成。请记住，如果使用多个连接，即使它们连接到同一数据库，也可能需要 DTC。
另外，你没有提到你正在使用哪个数据库，但 MySQL 实现中存在错误导致它无法工作。对于 MySQL，此问题在 MySQL 5.1.3 中已修复。
Yes, that should work fine. Internally, the connections should be kept open until the transaction completes. Keep in mind that DTC may be required if multiple connections are used though, even if they are to the same database.
Also, you don't mention which database you are using, but there were bugs in the MySQL implementation that caused this not to work. For MySQL, this was fixed in MySQL 5.1.3.
http://msdn.microsoft.com/en -us/library/system.data.sqlclient.sqlconnection.close.aspx
调用 Close 仅意味着您的代码已完成连接。如果 ADO.NET 基础结构仍然需要连接（以完成事务或连接池），则连接保持打开状态。
http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.close.aspx
Calling Close just means that your code is done with the connection. If the ADO.NET infrastructure still wants the connection (to complete a transaction, or for connection pooling), the connection remains open.