Internal .net Framework Data Provider Error

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Forums Answered by: Internal .Net Framework Data Provider error 1 Data Platform Development > ADO.NET Managed Providers Question 0 Sign in to vote I am getting "Internal .Net Framework Data Provider error 1" internal .net framework data provider error 12 error while calling execute reader. Any body has idea what is the cause and fix? Tuesday, June 13, 2006 7:48 PM Reply | Quote Answers 7 Sign in to vote Weird errors like this are often the result of multi-threading access to objects that are not threadsafe. Even if your code is not explicitly creating multiple threads, you have to be careful of situations where multiple threads may internal .net framework data provider error 1025 be used internally. I noticed that your call stack shows that the SqlDataReader.Close call is coming from your Finalize method (it's directly coming from Dispose, but Dispose is being called by Finalize). It is not safe to call any managed objects in Finalize, because it is called non-deterministically by the garbage collector on a separate thread. The SqlDataReader.Close documentation explicitly calls this out: SqlDataReader.Close Method http://msdn2.microsoft.com/en-us/library/system.data.sqlclient.sqldatareader.close.aspx Caution  Do not call Close or Dispose on a Connection, a DataReader, or any other managed object in the Finalize method of your class. In a finalizer, you should only release unmanaged resources that your class owns directly. If your class does not own any unmanaged resources, do not include a Finalize method in your class definition. For more information, see Garbage Collection. You should explicitly close the SqlDataReader when you are done using it, before finalization. If you do that and are still running into problems, post back again with a new error message and call stack (if they have changed).Thanks,Sarah   Thursday, June 15, 2006 12:12 AM Reply | Quote All replies 0 Sign in to vote Could you please give a complete call stack of the exceeption? Is the connection still open when y

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a https://social.msdn.microsoft.com/Forums/en-US/b23d8492-1696-4ccb-b4d9-3e7fbacab846/internal-net-framework-data-provider-error-1?forum=adodotnetdataproviders minute: Sign up Internal .Net Framework Data Provider error 1 up vote 4 down vote favorite I'm developing a WinForm app with Visual Studio 2012 Ultimate edition with all service pack, C# and .NET Framework 4.5. I get this exception: Internal .Net Framework Data Provider error 1 With this stack: en System.Data.ProviderBase.DbConnectionInternal.PrePush(Object expectedOwner) en System.Data.ProviderBase.DbConnectionPool.PutObject(DbConnectionInternal obj, Object owningObject) en System.Data.ProviderBase.DbConnectionInternal.CloseConnection(DbConnection owningObject, DbConnectionFactory http://stackoverflow.com/questions/22962742/internal-net-framework-data-provider-error-1 connectionFactory) en System.Data.SqlClient.SqlConnection.CloseInnerConnection() en System.Data.SqlClient.SqlConnection.Close() en AdoData.TRZIC.DisposeCurrentConnection() en AdoData.TRZIC.Finalize() In the destructor: ~TRZIC() { DisposeCurrentConnection(); if (this.getCodeCmd != null) this.getCodeCmd.Dispose(); } private void DisposeCurrentConnection() { if (this.conn != null) { if (this.conn.State == ConnectionState.Open) this.conn.Close(); this.conn.Dispose(); this.conn = null; } } I get the exception in line this.conn.Close();. And conn is private SqlConnection conn = null; Do you know why? c# .net winforms ado.net share|improve this question edited Apr 9 '14 at 12:42 asked Apr 9 '14 at 12:36 VansFannel 14.1k57230409 There are some mistakes, you doesn't need to this.conn=null; after disposing it, and also I suggest to dispose your command before calling DisposeCurrentConnection() –RezaRahmati Apr 9 '14 at 12:48 add a comment| 2 Answers 2 active oldest votes up vote 6 down vote accepted I have found the solution here: http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataproviders/thread/b23d8492-1696-4ccb-b4d9-3e7fbacab846/. Basically is: Caution Do not call Close or Dispose on a Connection, a DataReader, or any other managed object in the Finalize method of your class. In a finalizer, you should only release unmanaged resources that your class owns directly. If your class does not own any unmanaged re

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack http://stackoverflow.com/questions/24765269/casting-linq-expression-throws-internal-net-framework-data-provider-error-1025 Overflow the company Business Learn more about hiring developers or posting ads with us https://www.experts-exchange.com/questions/23618425/internal-net-framework-data-provider-error-1.html Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Casting LINQ expression throws “Internal .NET Framework Data Provider error 1025.” up vote 4 down vote internal .net favorite The following code: model.Items = dbQuery.Select(c => new Item { Total = c.Items.Count((Func)(t => t.Amount.HasValue)) }).ToArray(); Throws the following exception: Internal .NET Framework Data Provider error 1025. However the exact code minus the cast works: model.Items = dbQuery.Select(c => new Item { Total = c.Items.Count(t => t.Amount.HasValue) }).ToArray(); Note: dbQuery is just an EF ObjectQuery. The expected type for Count() is Func, and it's even verified by ReSharper that internal .net framework they're the same type by the fact that it grays the cast out, suggesting that it's not needed and they're functionally equivalent. However, the exception proves that they are not, in fact, functionally equivalent. Also, I did see this related question/answer, but Count() (in this case, anyway) will not accept an Expression>, so that doesn't work for me. c# linq entity-framework share|improve this question asked Jul 15 '14 at 18:12 Jerad Rose 7,8171050129 1 So why are you trying to add something that is designed to be useless, but that is resulting in your code not working at all. If it hurts when you do that, don't do that. –Servy Jul 15 '14 at 18:31 Did you try to cast to Espression> instead? –Alexander Galkin Jul 15 '14 at 18:37 @AlexanderGalkin He answers that right in the question. –Servy Jul 15 '14 at 18:39 @Servy I was trying to abstract the actual issue from the details in the interest of simplicity. But it boils down to the fact that I'm trying to reuse the logic in my (more complicated) expression, and storing this logic in a Func isn't working. But if I can get the above code to work, then I can

for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > internal .net framework data provider error 1 Want to Advertise Here? Solved internal .net framework data provider error 1 Posted on 2008-08-04 .NET Programming 1 Verified Solution 5 Comments 1,798 Views Last Modified: 2013-12-17 I'm getting this error when i'm doing a sqlconnection dispose: System.InvalidOperationException: {"Internal .Net Framework Data Provider error 1."} System.InvalidOperationException was unhandled Message="Internal .Net Framework Data Provider error 1." Source="System.Data" StackTrace: at System.Data.ProviderBase.DbConnectionInternal.PrePush(Object expectedOwner) at System.Data.ProviderBase.DbConnectionPool.PutObject(DbConnectionInternal obj, Object owningObject) at System.Data.ProviderBase.DbConnectionInternal.CloseConnection(DbConnection owningObject, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlInternalConnection.CloseConnection(DbConnection owningObject, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Close() at System.Data.SqlClient.SqlConnection.Dispose(Boolean disposing) at System.ComponentModel.Component.Dispose() at EDIDev.clsDataBase.Dispose(Boolean disposing) in C:\Documents and Settings\dave.jones\Desktop\EDI test\EDIDev\clsDataBase.cs:line 1171 at EDIDev.clsDataBase.Dispose() in C:\Documents and Settings\dave.jones\Desktop\EDI test\EDIDev\clsDataBase.cs:line 1154 at EDIDev.Management.clsSuppliers.Finalize() in C:\Documents and Settings\dave.jones\Desktop\EDI test\EDIDev\Management\clsSuppliers.cs:line 20 Select all Open in new window 0 Question by:zell71 Facebook Twitter LinkedIn Google LVL 41 Best Solution bygraye Well, try it ... just remove the Dispose and Finalize methods Go to Solution 5 Comments LVL 41 Overall: Level 41 .NET Programming 22 Message Expert Comment by:graye2008-08-04 Show us a bit of the code in the vincinity of line 1171 of clsDataBase.cs BTW: Did you write the Finalize and Dispose methods? 0 LVL 6 Over