小弟在写程序报如下异常错误，求高人指导
An error occurred while executing the command definition.See the inner exception for details .System,InvalidOperationException:The transaction associated with the current connection has completed but has not been disposed.The transaction must be disposed before the connection can be used to execute SQL statements
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操作数据库异常
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The transaction associated with the current connection has completed but has not been disposed.The transaction must be disposed before the connection can be used to execute SQL statements
释放事务然后才是断开sql连接