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FIX: You cannot establish a second connection between a .NET Framework 2.0-based application and a SQL Server database by using the SqlConnection.Open method

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

Article ID: 973256 - Last Review: October 7, 2011 - Revision: 2.0

FIX: You cannot establish a second connection between a .NET Framework 2.0-based application and a SQL Server database by using the SqlConnection.Open method

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SYMPTOMS

You have a Microsoft .NET Framework 2.0-based application that connects to a SQL Server database. You use the TransactionScope class to create a transaction. In the transaction, you establish a second connection by calling the SqlConnection.Open method. When you do this, you may receive the following error message and call stack information:
System.InvalidOperationException: The requested operation cannot be completed because the connection has been broken.
at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest transactionRequest, String name, IsolationLevel iso, SqlInternalTransaction internalTransaction, Boolean isDelegateControlRequest) 
at System.Data.SqlClient.SqlDelegatedTransaction.Promote() 
at System.Transactions.TransactionStatePSPEOperation.PSPEPromote(InternalTransaction tx) 
at System.Transactions.TransactionStateDelegatedBase.EnterState(InternalTransaction tx) 
at System.Transactions.EnlistableStates.Promote(InternalTransaction tx) 
at System.Transactions.Transaction.Promote() 
at System.Transactions.TransactionInterop.ConvertToOletxTransaction(Transaction transaction) 
at System.Transactions.TransactionInterop.GetExportCookie(Transaction transaction, Byte[] whereabouts) 
at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx) 
at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx) 
at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction) 
at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction) 
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) 
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) 
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) 
at System.Data.SqlClient.SqlConnection.Open()

RESOLUTION

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

You must have the .NET Framework 2.0 Service Pack 1 (SP1) installed to apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix if no instance of the .NET Framework is being used.

Hotfix replacement information

This hotfix does not replace other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.
For all supported x86-based versions of Windows XP, of Windows Server 2000, and of Windows Server 2003
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
system.data.dll2.0.50727.18752,998,27205-19:40x86

For all supported x64-based versions of Windows XP, of Windows Server 2000, and of Windows Server 2003
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
system.data.dll2.0.50727.18753,113,98405-15:22x64
system.data.dll2.0.50727.18752,998,27205-19:40x86

For all supported Itanium-based versions of Windows XP, of Windows Server 2000, and of Windows Server 2003
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
system.data.dll2.0.50727.18753,208,19205-15:56IA-64
system.data.dll2.0.50727.18752,998,27205-19:40x86

WORKAROUND

To work around this problem, use one of the following procedures:

Work around 1

Promote the transaction before it is used by any connection. To do this, use the System.Transasctions.TransactionInterop.GetTransmitterPropagationToken method.

Work around 2

The transaction has one connection enlisted. Keep this connection open for combined operations.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

APPLIES TO
  • Microsoft .NET Framework 2.0 Service Pack 1 (x86)
Keywords: 
kbexpertiseadvanced kbsurveynew kbqfe KB973256
       

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