Microsoft KB Archive/824407

= FIX: &quot;Object Reference Not Set to an Instance of an Object&quot; Error While Rolling Back a Transaction =

Article ID: 824407

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft .NET Framework 1.0 Service Pack 2
 * Microsoft ADO.NET 1.0

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SYMPTOMS
When you use the Microsoft ODBC .NET Managed Provider, and an intermittent network problem causes a loss of connection to your database server while you are trying to rollback the transaction, you may receive the following error message:

Object reference not set to an instance of an object



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. Date       Time    Version     Size        File name

13-Aug-2003 08:06  1.0.4036.0  327,680     Microsoft.data.odbc.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
You may see the following call stack repeat itself multiple times before the error occurs. This is a stack overflow issue that results in the error that is mentioned in the &quot;Symptoms&quot; section of this article. microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::set_AutoCommit(bool value = true) + 0x57 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::Rollback + 0xe1 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::Dispose(bool disposing = true) + 0x33 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::System.IDisposable.Dispose + 0x14 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::DisposeClose + 0x75 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::Close + 0x16 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::HandleErrorNoThrow(__int32 hHandle = 62461328, Microsoft.Data.Odbc.ODBC32.SQL_HANDLE hType = DBC, Microsoft.Data.Odbc.ODBC32.RETCODE retcode = ERROR) + 0x11c bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::HandleError(__int32 hHandle = 62461328, Microsoft.Data.Odbc.ODBC32.SQL_HANDLE hType = DBC, Microsoft.Data.Odbc.ODBC32.RETCODE retcode = ERROR) + 0x21 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::set_AutoCommit(bool value = true) + 0x87 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::Rollback + 0xe1 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::Dispose(bool disposing = true) + 0x33 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcTransaction::System.IDisposable.Dispose + 0x14 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::DisposeClose + 0x75 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::Close + 0x16 bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::HandleErrorNoThrow(__int32 hHandle = 62461328, Microsoft.Data.Odbc.ODBC32.SQL_HANDLE hType = DBC, Microsoft.Data.Odbc.ODBC32.RETCODE retcode = ERROR) + 0x11c bytes

microsoft.data.odbc.dll!Microsoft.Data.Odbc.OdbcConnection::HandleError(__int32 hHandle = 62461328, Microsoft.Data.Odbc.ODBC32.SQL_HANDLE hType = DBC, Microsoft.Data.Odbc.ODBC32.RETCODE retcode = ERROR) + 0x21 bytes

Keywords: kbbug kbfix kbprovider kbtransaction kbqfe kbnetframe100presp3fix kbhotfixserver KB824407

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