这似乎是一个MySQL的.NET连接器的bug，因为我采用的是MySQL .NET连接器的DLL连接到我的MySQL数据库。我已经看到了一些其他的抱怨这一点。看到 http://bugs.mysql.com/bug.php?id=36688

It seems a MySql .net connector bug, because I was using mysql .net connector DLL to connect to my mysql db. I have seen some other complains about it too. See http://bugs.mysql.com/bug.php?id=36688

我使用的5.1版的MySQL .NET连接器的DLL，我刚才已经升级到6.1（最新）和它工作正常，没有任何错误。

I was using MySQL .net connector DLL of version 5.1, I have just upgraded to 6.1 (latest) and its working fine without any error.

在这里下载最新的DLL： http://dev.mysql.com/下载/连接器/ NET / 6.1.html

Download the latest DLL here: http://dev.mysql.com/downloads/connector/net/6.1.html

感谢