OnReturnStatus中的NullReferenceException [英] NullReferenceException in OnReturnStatus
问题描述
当我关闭sqldatareader 我受苦 a NullReferenceException
when I close sqldatareader I suffer a NullReferenceException
详细信息:
异常信息:
 例外类型:NullReferenceException
 异常消息:对象引用未设置为对象的实例。
at System.Data.SqlClient.SqlCommand.OnReturnStatus(Int32 status)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior,SqlCommand cmdHandler,SqlDataReader dataStream,BulkCopySimpleResultSet bulkCopyHandler,TdsParserStateObject stateObj,Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryCloseInternal(Boolean closeReader)
at System.Data.SqlClient.SqlDataReader.Close()
Exception information:
Exception type: NullReferenceException
Exception message: Object reference not set to an instance of an object.
at System.Data.SqlClient.SqlCommand.OnReturnStatus(Int32 status)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryCloseInternal(Boolean closeReader)
at System.Data.SqlClient.SqlDataReader.Close()
我想知道发生异常的原因。
I want to know why the exception occured.
推荐答案
嗯,你需要显示发生异常的代码。
Well, you need to show the code where the exception occurred.
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