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Internal .net Framework Data Provider Error 12

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We’re sorry. The content you requested has been removed. You’ll be auto redirected internal .net framework data provider error 30 in 1 second. Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums internal .net framework data provider error 6 azure Answered by: Internal .Net FrameWork Data Provider Error 12. Data Platform Development > ADO.NET Managed Providers Question 0 Sign in to vote Hi, I am using .Net Framework 2.0. And for accessing data Oledb

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data provider. This is used in a multi-threaded windows service. I am getting the following error on a select query. The stack trace is as follows.Internal .Net Framework Data Provider error 12. at System.Data.ProviderBase.DbConnectionInternal.CreateReferenceCollection() at System.Data.ProviderBase.DbConnectionInternal.AddWeakReference(Object value, Int32 tag) at System.Data.OleDb.OleDbConnection.AddWeakReference(Object value, Int32 tag) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteScalar() at File_Transfer.clsDataAccessObject.GetCellValue(String strSql) Saturday, September 16, 2006 6:47 AM Reply | Quote Answers 1 Sign in to vote Errors like this usually occur due to multithreaded access of connections. You mention that this is a multi-threaded windows service. How do you manage your OleDbConnections? Are they declared locally within the methods where you need a connection, or are you sharing them at a broader scope? The OleDbConnection class is not threadsafe, so make sure you do not access the same connection from multiple threads at the same time. It's a good idea not to share connections across threads at all, even if you intend to synchronize access to them. It's better to just use them at the smallest scope possible, opening when you need them and closing when you are done. OLE DB connection pooling will take care of reusing the connections internally so that you don't introduce excessive overhead by opening and closing connections repeatedly. Thanks,Sarah Please Mark as Answer if this answers your question, or Unmark as Answer if it is marked and you feel it is not answered. Tuesday, September 19, 2006 12:16 AM Reply | Quote 0 Sign in to vote Maybe you can try System.Thread.Mutex or synchronous Event and Wait Handle to synchronize Connection. One simple way is where there is a place t

ASP.NET Community Standup Forums Help Home/ASP.NET Forums/Data Access/Oracle, MySQL, Sybase, Informix and other databases/Internal .Net Framework Data Provider error 12 Internal .Net Framework Data Provider error 12 RSS 0 replies Last post Sep 10, 2007 05:00 PM by ecaslake ‹ Previous Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options Advanced Search Reply ecaslake https://social.msdn.microsoft.com/Forums/en-US/0859dee9-6a1c-484c-9bcb-41fca3c0b938/internal-net-framework-data-provider-error-12?forum=adodotnetdataproviders None 0 Points 13 Posts Internal .Net Framework Data Provider error 12 Sep 10, 2007 05:00 PM|ecaslake|LINK I have a 2.0 .NET application written in c#, where I am required to use the OLEDB Data Provider to talk to an Oracle database. I have class files that do http://forums.asp.net/t/1156846.aspx?Internal+Net+Framework+Data+Provider+error+12 all of the database access, where I am creating a new instances of the class everytime I need to access data. In each of the classes I have several methods, for the most part all these methods use the DataAdapter.Fill method to retrieve data, but a couple of them are executing stored procedures where the connection is opened, executed, and closed in three lines of code. The problem is that I am getting "Internal .Net Framework Data Provider error 12" sporadically and haven't been able to figure out why.Any ideas or insights would be much appreciated. Thanks, Eric ‹ Previous Thread|Next Thread › This site is managed for Microsoft by Neudesic, LLC. | © 2016 Microsoft. All rights reserved. Privacy Statement| Terms of Use| Contact Us| Advertise With Us| CMS by Umbraco| Hosted on Microsoft Azure Feedback on ASP.NET| File Bugs| Support Lifecycle

I am using .Net Framework 2.0. And for accessing data Oledb data http://www.pcreview.co.uk/threads/internal-net-framework-data-provider-error-12.2877001/ provider. This is used in a multi-threaded windows service. I http://vbcity.com/forums/t/129644.aspx am getting the following error on a select query. The stack trace is as follows. Internal .Net Framework Data Provider error 12. at System.Data.ProviderBase.DbConnectionInternal.CreateReferenceCollection() at System.Data.ProviderBase.DbConnectionInternal.AddWeakReference(Object value, Int32 tag) at System.Data.OleDb.OleDbConnection.AddWeakReference(Object value, Int32 tag) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteScalar() internal .net at File_Transfer.clsDataAccessObject.GetCellValue(String strSql) Anant Kulkarni, Sep 16, 2006 #1 Advertisements Miha Markic [MVP C#] Guest Hi Anant, Does it happens on single thread, too (or in single thread of winforms)? I am asking this because I already saw similar behaviour in one of less known oledb providers.. -- Miha Markic internal .net framework [MVP C#, INETA Country Leader for Slovenia] RightHand .NET consulting & development www.rthand.com Blog: http://cs.rthand.com/blogs/blog_with_righthand/ "Anant Kulkarni" <> wrote in message news:... > Hi, > I am using .Net Framework 2.0. And for accessing data Oledb data > provider. This is used in a multi-threaded windows service. I am > getting the following error on a select query. > > The stack trace is as follows. > > Internal .Net Framework Data Provider error 12. > at > System.Data.ProviderBase.DbConnectionInternal.CreateReferenceCollection() > at > System.Data.ProviderBase.DbConnectionInternal.AddWeakReference(Object > value, Int32 tag) > at System.Data.OleDb.OleDbConnection.AddWeakReference(Object value, > Int32 tag) > at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior > behavior, String method) > at System.Data.OleDb.OleDbCommand.ExecuteScalar() > at File_Transfer.clsDataAccessObject.GetCellValue(String strSql) > Miha Markic [MVP C#], Sep 16, 2006 #2 Advertisements Cowboy \(Gregory A. Beamer\) Guest All searches yield nothing on this error. What is the actual code that is fired when the error comes up, pointing out the line of code

Framework Data Provider error 1... rated by 0 users This post has 6 Replies | 1 Follower denpsia Phillipines Since 5/6/2005 Posts 653 Reputation 7,224 Reply Dennis Sia (denpsia) Posted: 9/6/2006 7:27 PM rated by 0 users Hi everybody,Is there anybody can tell me what this error meant? Where is source of error? There is a class library DLL created by another person. I used C# (VS 2005 Professional Edition) and SQL Server 2005 Express Edition and also used Visual SourceSafe 6.0.In this class,There is a constructor and destructor in the destructor it calls the CloseConnection() method where the error occurs.Code:private void CloseConnection() {if (m_Connection != null) {try {// Check if connection is already closed, if not, then close itif (m_Connection.State != ConnectionState.Closed)m_Connection.Close(); <<---Error Occurs here// Dispose the connection object and set it to null to release resources used by the objectm_Connection.Dispose();m_Connection = null;}catch {throw;}}}***RESOLVED*** I created new class to do same function without using destructor to close connection. I am puzzled why this class works with version 1.1 and SQL 2000...Confuse?:confused:denpsia -----------------------------------------------------------------------------------------Please make sure if problem in your post is solved, add Resolved icon and/or add "[Resolved]" in your title on first post. Thanks. | Post Points: 65 travis_abrahamson California Since 3/30/2005 Posts 2,223 Reputation 20,464 Reply Travis Abrahamson (travis_abrahamson) replied on 9/6/2006 8:21 PM rated by 0 users I would check the Connection StateThis code only checks to see if the State is Not ClosedHowever, you still have Broken, Connecting, Executing, Fetching, and Open. I'm not 100% sure but I think there might be a problem with trying to close a connection that has a ConnectionStatus other then Open. Travis MCADGod created the world in fifth normal form, but had to de-normalize it for us to understandPosting Guidlines | Post Points: 5 sukiLau Malaysia Since 5/4/2005 Posts 415 Reputation 2,795 Reply mamakcafe (sukiLau) replied on 9/6/2006 8:38 PM rated by 0 users Try to refer this web site:http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=473449&SiteID=1 | Post Points: 5 Spebby Oklahoma Since 8/24/2004 Posts 4,653 Reputation 31,560 Reply Ben Spencer (Spebby) replied on 9/6/2006 8:40 PM rated by 0 users The CloseConnection should not be called in the destructor. A couple of quotes from MSDN:Quote:The programmer has no control over when the destructor is called because this is determined by the garbage collec

 

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internal .net framework data provider error

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