Transactional scope gives an error when using ADO.NET entities

Transactional scope gives an error when using ADO.NET entities

Old forum URL: forums.lhotka.net/forums/t/4729.aspx

Piet Koole posted on Tuesday, April 22, 2008

I am trying te get entities to work with the CSLA framework.
If I use it in the DataPortal_Update I get an error at the moment I execute the context.SaveChanges command. Removing [Transactional(TransactionalTypes.TransactionScope)] helps.
Can the combination ever work?

Piet

RockfordLhotka replied on Tuesday, April 22, 2008

I have not had time to research EF with CSLA, so you are a pioneer :)

I'd be very surprised to find that EF doesn't work with the TransactionScope concept though - it would be shocking to find that they weren't supporting the primary transactional model in .NET. All the Transactional attribute does is put your code in a using block with a TransactionScope object - nothing fancy at all.

What is the exception?

Piet Koole replied on Tuesday, April 22, 2008

This is de code
    [Transactional(TransactionalTypes.TransactionScope)]
    protected override void DataPortal_Update()
    {
      using (CobraXE.PersonenContext personenContext = new CobraXE.PersonenContext())
      {
        // insert Persoon data
        //System.Data.Linq.Binary lastChanged = null;

        var data = (from p in personenContext.Personen
                    where p.PersoonKey == Key
                    select p).First<CobraXE.Persoon>();

        data.Sofinummer = Sofinummer;
        personenContext.SaveChanges();
        //mTimestamp = lastChanged.ToArray();
        // update child objects
        //DataPortal.UpdateChild(ReadProperty<PersoonResources>(ResourcesProperty), this);
      }
    }

This is the exception


First exception
{"The underlying provider failed on Open."}
    [System.Data.ProviderException]: {"The underlying provider failed on Open."}
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: {"MSDTC on server 'VMBASIS20GB' is unavailable."}
    Message: "The underlying provider failed on Open."
    Source: "System.Data.Entity"
    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)"
    TargetSite: {Void OpenStoreConnectionIf(Boolean, System.Data.Common.DbConnection, System.Data.Common.DbConnection, System.String, System.String, Boolean ByRef)}

As printed in the messagebox

{"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, Sql
InternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open()\r\n   at System.Data.Entit
yClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Ob
ject obj, DynamicMethodHandle methodHandle, Object[] parameters))"}
    base {System.Exception}: {"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel
 isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open
()\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflecti
on.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters))"}
    _businessObject: {1}
    _innerStackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method,
Object[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)"
    BusinessException: {"The underlying provider failed on Open."}
    BusinessObject: {1}
    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method, Object
[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)\r\n   at Csla.DataPortal.Update(Object obj)\r\n   at Csla.DataPortal.Update[T](T obj)\r\n   at Csla.BusinessBase`1.Save()\r\n   at CTB.Cobra.CobraNexus.WinApp.PersonenForm.saveButton_Click(Object sender, EventArgs e) in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.WinApp\\PersonenForm.cs:line 82"

sergeyb replied on Tuesday, April 22, 2008

Here is the solution to this issue:

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=3036946&SiteID=1

 

More precisely, a hack for this issue J

 

 

Sergey Barskiy

Senior Consultant

office: 678.405.0687 | mobile: 404.388.1899

cid:_2_0648EA840648E85C001BBCB886257279
Microsoft Worldwide Partner of the Year | Custom Development Solutions, Technical Innovation

 

From: Piet Koole [mailto:cslanet@lhotka.net]
Sent: Tuesday, April 22, 2008 9:26 AM
To: Sergey Barskiy
Subject: Re: [CSLA .NET] Transactional scope gives an error when using ADO.NET entities

 

This is de code
    [Transactional(TransactionalTypes.TransactionScope)]
    protected override void DataPortal_Update()
    {
      using (CobraXE.PersonenContext personenContext = new CobraXE.PersonenContext())
      {
        // insert Persoon data
        //System.Data.Linq.Binary lastChanged = null;

        var data = (from p in personenContext.Personen
                    where p.PersoonKey == Key
                    select p).First<CobraXE.Persoon>();

        data.Sofinummer = Sofinummer;
        personenContext.SaveChanges();
        //mTimestamp = lastChanged.ToArray();
        // update child objects
        //DataPortal.UpdateChild(ReadProperty<PersoonResources>(ResourcesProperty), this);
      }
    }

This is the exception


First exception
{"The underlying provider failed on Open."}
    [System.Data.ProviderException]: {"The underlying provider failed on Open."}
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: {"MSDTC on server 'VMBASIS20GB' is unavailable."}
    Message: "The underlying provider failed on Open."
    Source: "System.Data.Entity"
    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)"
    TargetSite: {Void OpenStoreConnectionIf(Boolean, System.Data.Common.DbConnection, System.Data.Common.DbConnection, System.String, System.String, Boolean ByRef)}

As printed in the messagebox

{"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, Sql
InternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open()\r\n   at System.Data.Entit
yClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Ob
ject obj, DynamicMethodHandle methodHandle, Object[] parameters))"}
    base {System.Exception}: {"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel
 isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open
()\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflecti
on.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters))"}
    _businessObject: {1}
    _innerStackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method,
Object[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)"
    BusinessException: {"The underlying provider failed on Open."}
    BusinessObject: {1}
    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method, Object
[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)\r\n   at Csla.DataPortal.Update(Object obj)\r\n   at Csla.DataPortal.Update[T](T obj)\r\n   at Csla.BusinessBase`1.Save()\r\n   at CTB.Cobra.CobraNexus.WinApp.PersonenForm.saveButton_Click(Object sender, EventArgs e) in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.WinApp\\PersonenForm.cs:line 82"



emmanuel replied on Tuesday, April 22, 2008

Another possibility is to add an ObjectContextManager.cs in Csla\Data folder which will look very similar to the files ContextManager.cs and ConnectionManager.cs. Except that now you use an ObjectContext instead of a DataContext.

You should then be able to replace:

using (CobraXE.PersonenContext personenContext = new CobraXE.PersonenContext())

with:

using (var ctx = ObjectContextManager<CobraXE.PersonenContext>.GetManager("yourConnectionString"))

where "yourConnectionString" is the one of your Entity Data Model.

 

Emmanuel.

 

 

Piet Koole replied on Tuesday, April 22, 2008

Thanks, it works.
Piet

RockfordLhotka replied on Tuesday, April 22, 2008

That exception occurs because you are opening multiple connections to the database and the DTC is being brought into play. This is a well-known “feature” of TransactionScope and affects all code that opens multiple database connections.

 

As Emmanuel mentions, something like the ConnectionManager or ContextManager for EF should allow reuse of the connection. I’m sure CSLA .NET 3.5.x will include some connection manager for EF when I get time to add/test it.

 

Or you can configure your machine to enable the DTC (because the exception indicates you haven’t enabled it on your machine).

 

Rocky

 

rogercito replied on Monday, December 08, 2008

Just for feedback about this problem, i coundn't make it work with the "open" instruction, had to start the DTC.

I have a BB->BLB(child)->BB(child) object and in the last BB child update I still get the same error stated in the initial post.

  private void Child_Update(PruebaTable pruebatable)
        {
            using (var ctx = ObjectContextManager<PruebaCSLAEntities2>.GetManager("PruebaCSLAEntities", true))
            {
                ctx.ObjectContext.Connection.Open();
                long id = ReadProperty(PruebaTableItemIDProperty);
                // get project data
                var data = (from p in ctx.ObjectContext.PruebaTableItems
                            where p.PruebaTableID == pruebatable.PruebaTableID && p.PruebaTableListID==id
                            select p).First();


                data.PruebaTableListNota = ReadProperty(PruebaTableItemNotaProperty);

                ctx.ObjectContext.SaveChanges();
                MarkOld();
            }
        }

The only solution I found was starting the service "Distributed Transaction Coordinator" in the control panel.


Im using Vista and SQL Server 2005 (EF).

Have a nice day!

RockfordLhotka replied on Monday, December 08, 2008

TransactionScope will use the DTC if more than one database connection is used within the transaction – even if the second connection uses the same connection string.

 

It is possible that EF is opening some connection behind the scenes – seems probable actually, given your findings. Not much any of us can do if EF runs off and opens its own connections…

 

Rocky

 

From: rogercito [mailto:cslanet@lhotka.net]
Sent: Monday, December 08, 2008 7:15 PM
To: rocky@lhotka.net
Subject: Re: [CSLA .NET] RE: Transactional scope gives an error when using ADO.NET entities

 

Just for feedback about this problem, i coundn't make it work with the "open" instruction, had to start the DTC.

I have a BB->BLB->BB test conficuration and in the lasr BB child update I still get the same error stated in the initial post.

  private void Child_Update(PruebaTable pruebatable)
        {
            using (var ctx = ObjectContextManager<PruebaCSLAEntities2>.GetManager("PruebaCSLAEntities", true))
            {
                ctx.ObjectContext.Connection.Open();
                long id = ReadProperty(PruebaTableItemIDProperty);
                // get project data
                var data = (from p in ctx.ObjectContext.PruebaTableItems
                            where p.PruebaTableID == pruebatable.PruebaTableID && p.PruebaTableListID==id
                            select p).First();


                data.PruebaTableListNota = ReadProperty(PruebaTableItemNotaProperty);

                ctx.ObjectContext.SaveChanges();
             &nbs p;  MarkOld();
            }
        }

The only solution I found was starting the service "Distributed Transaction Coordinator" in START > SETTINGS > CONTROL PANEL > ADMINISTRATIVE TOOLS > SERVICES

Piet Koole replied on Tuesday, April 22, 2008

Thanks for the quick reply.

 

 

Piet Koole

 

This is de code

    [Transactional(TransactionalTypes.TransactionScope)]

    protected override void DataPortal_Update()

    {

      using (CobraXE.PersonenContext personenContext = new CobraXE.PersonenContext())

      {

        // insert Persoon data

        //System.Data.Linq.Binary lastChanged = null;

 

        var data = (from p in personenContext.Personen

                    where p.PersoonKey == Key

                    select p).First<CobraXE.Persoon>();

 

        data.Sofinummer = Sofinummer;

        personenContext.SaveChanges();

        //mTimestamp = lastChanged.ToArray();

        // update child objects

        //DataPortal.UpdateChild(ReadProperty<PersoonResources>(ResourcesProperty), this);

      }

    }

 

This is the exception

 

 

First exception

{"The underlying provider failed on Open."}

    [System.Data.ProviderException]: {"The underlying provider failed on Open."}

    Data: {System.Collections.ListDictionaryInternal}

    HelpLink: null

    InnerException: {"MSDTC on server 'VMBASIS20GB' is unavailable."}

    Message: "The underlying provider failed on Open."

    Source: "System.Data.Entity"

    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)"

    TargetSite: {Void OpenStoreConnectionIf(Boolean, System.Data.Common.DbConnection, System.Data.Common.DbConnection, System.String, System.String, Boolean ByRef)}

 

As printed in the messagebox

 

{"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, Sql

InternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open()\r\n   at System.Data.Entit

yClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Ob

ject obj, DynamicMethodHandle methodHandle, Object[] parameters))"}

    base {System.Exception}: {"DataPortal.Update failed (System.Data.ProviderException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: MSDTC on server 'VMBASIS20GB' is unavailable.\r\n   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel

 isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)\r\n   at System.Data.SqlClient.TdsParser.GetDTCAddress(Int32 timeout, TdsParserStateObject stateObj)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.GetDTCAddress()\r\n   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)\r\n   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction)\r\n   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)\r\n   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)\r\n   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)\r\n   at System.Data.SqlClient.SqlConnection.Open

()\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   --- End of inner exception stack trace ---\r\n   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflecti

on.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters))"}

    _businessObject: {1}

    _innerStackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method,

Object[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)"

    BusinessException: {"The underlying provider failed on Open."}

    BusinessObject: {1}

    StackTrace: "   at System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure)\r\n   at System.Data.EntityClient.EntityConnection.Open()\r\n   at System.Data.Objects.ObjectContext.EnsureConnection()\r\n   at System.Data.Objects.ObjectContext.SaveChanges(Boolean acceptChangesDuringSave)\r\n   at System.Data.Objects.ObjectContext.SaveChanges()\r\n   at CTB.Cobra.CobraNexus.Library.Persoon.DataPortal_Update() in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.Library\\Persoon.cs:line 190\r\n   at dm(Object , Object[] )\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, DynamicMethodHandle methodHandle, Object[] parameters)\r\n   at Csla.Reflection.MethodCaller.CallMethod(Object obj, String method, Object

[] parameters)\r\n   at Csla.Reflection.LateBoundObject.CallMethod(String method)\r\n   at Csla.Server.SimpleDataPortal.Update(Object obj, DataPortalContext context)\r\n   at Csla.DataPortal.Update(Object obj)\r\n   at Csla.DataPortal.Update[T](T obj)\r\n   at Csla.BusinessBase`1.Save()\r\n   at CTB.Cobra.CobraNexus.WinApp.PersonenForm.saveButton_Click(Object sender, EventArgs e) in E:\\Projecten\\CobraNexus\\CTB.Cobra.CobraNexus.WinApp\\PersonenForm.cs:line 82"

 

Van: RockfordLhotka [mailto:cslanet@lhotka.net]
Verzonden: dinsdag 22 april 2008 14:59
Aan: Piet Koole
Onderwerp: Re: [CSLA .NET] Transactional scope gives an error when using ADO.NET entities

 

I have not had time to research EF with CSLA, so you are a pioneer :)

I'd be very surprised to find that EF doesn't work with the TransactionScope concept though - it would be shocking to find that they weren't supporting the primary transactional model in .NET. All the Transactional attribute does is put your code in a using block with a TransactionScope object - nothing fancy at all.

What is the exception?



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