Asp.net System.data.oledb.oledbexception Unspecified Error
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System.data.oledb.oledbexception (0x80004005): Operation Must Use An Updateable Query.
a Freelance Project Hire for a Full Time Job Ways to document settings\servername\aspnet\local settings\temp Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services oledbexception error codes list Groups Website Testing Store Headlines Experts Exchange > Questions > ASP.NET System.Data.OleDb.OleDbException: Unspecified error reading Excel file Want to Advertise Here? Solved ASP.NET System.Data.OleDb.OleDbException: Unspecified error reading Excel file https://support.microsoft.com/en-us/kb/825738 Posted on 2009-01-14 C# 1 Verified Solution 7 Comments 4,152 Views Last Modified: 2012-05-06 I have the following code in a web service that attempts to open an excel file for reading: System.Data.OleDb.OleDbConnection xcn = new System.Data.OleDb.OleDbConnection(); xcn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=\"Excel 8.0;IMEX=1\""; https://www.experts-exchange.com/questions/24052644/ASP-NET-System-Data-OleDb-OleDbException-Unspecified-error-reading-Excel-file.html xcn.Open(); In our production environment this starts to fail once or twice a day and the only way I can fix is with IISRESET /RESTART. Here is the error I get: System.Data.OleDb.OleDbException: Unspecified error at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) at System.Data.OleDb.OleDbConnectionFactory.CreateConnection... I have checked permissions on various temp folders that JET supposedly uses, and permissions are fine. The most frustrating thing is that it will work for several times in a row, and then start failing every time (until IISREST). Any thoughts? 0 Question by:JCS2009 Facebook Twitter LinkedIn Google LVL 21 Best Solution byMogalManic Here is some documentation I found: http://msdn.microsoft.com/en-us/library/ms254502.aspx http://msdn.microsoft.com/en-us/library/ms810829.aspx Another thought, Since the Jet Excel OLE driver Go to Solution 6 Comments LVL 21 Overall: Level 21 C# 15 Message Expert Comment by:MogalManic2009-01-14 Are you closing the connection when you finished? I'm not sure how ODBC and Excel work with connection pooling, but if you open the Excel file multiple times, eventually you will run out of file handles and the connection will f
Post your question and get tips & solutions from a community of 418,432 IT Pros & Developers. It's quick https://bytes.com/topic/asp-net/answers/344290-oledbexception-0x80004005-unspecified-error & easy. [OleDbException (0x80004005): Unspecified error] P: n/a Jim McGivney ASPX page from VS.net-C# on host's computer using oleDataAdaptor to connect to Microsoft Access database. The page loads, http://blogs.msmvps.com/rakeshrajan/2005/07/04/system-data-oledb-oledbexception-unspecified-error/ but when connection to the database is attempted to fill a datagrid the following error is generated. Any help would be appreciated. Thanks, Jim Description: An unhandled system.data.oledb.oledbexception unspecified exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.OleDb.OleDbException: Unspecified error Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the system.data.oledb.oledbexception unspecified error exception can be identified using the exception stack trace below. Stack Trace: [OleDbException (0x80004005): Unspecified error] System.Data.OleDb.OleDbConnection.ProcessResults(I nt32 hr) +20 System.Data.OleDb.OleDbConnection.InitializeProvid er() +57 System.Data.OleDb.OleDbConnection.Open() +203 System.Data.Common.DbDataAdapter.QuietOpen(IDbConn ection connection, ConnectionState& originalState) +44 System.Data.Common.DbDataAdapter.FillFromCommand(O bject data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +304 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +77 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) +38 Win0905.AnteEditIden.Page_Load(Object sender, EventArgs e) +62 System.Web.UI.Control.OnLoad(EventArgs e) +67 System.Web.UI.Control.LoadRecursive() +35 System.Web.UI.Page.ProcessRequestMain() +750 Nov 19 '05 #1 Post Reply Share this Question 7 Replies P: n/a Ken Cox [Microsoft MVP] Hi Jim, You might want to check whether the ASPNET account (or the current account if using impersonation) has Change permissions on the directory where the Access database is located. Access needs to create a locking file and you can get an error like this if it is unable to do so because of lack of permissions. Ken MVP [ASP.NET] "Jim McGivney"
the Connection.Open method on an Access or Excel file within ASP.NET. This is an issue you could face while opening Excel or Access files as data sources in ASP.NET using OleDb Jet. Cause Number 1ASP.NET/Impersonated account doesn't have enough privileges to create the ldb file. Resolution Give the ASP.NET user account create/write privileges to the folder where the excel/access file is placed. If you are using impersonation, give the impersonated account the said privileges. Cause Number 2 Impersonated account doesn't have enough privileges to create temporary files. Description When you open excel or access files using Jet, it requires creation of temporary files. Under ASP.NET, these files will be created under the C:\Documents and Settings\MachineName\ASPNET\Local Settings\Temp folder. By default, the ASP.NET user account is given full access to this folder. Now, when you are using impersonation, the impersonated account naturally wouldn't have access to this folder. Consequently, the Jet engine wouldn't be able to create the temporarily files while opening connections to excel or access files under ASP.NET. Due to this, the OleDb provider throws an exception with no specific message - System.Data.OleDb.OleDbException: Unspecified error. Resolution Give the impersonated account full access to the above mentioned folder. Check out the Microsoft support article here[^] Post navigation Previous PostJust finished uploading the MVP Summit picsNext PostHttpUnhandledException and HttpParseException - they are now Serializable :) 52 thoughts on “System.Data.OleDb.OleDbException: Unspecified error” dongdong says: September 27, 2005 at 4:10 pm I have no Impersonate and the aspnet_wp account does have full control on the folder. But the error still there. Reply subhro debroy says: October 6, 2005 at 5:37 pm good Reply subhro debroy says: October 6, 2005 at 5:40 pm brilliant Reply Cas MEijer says: December 23, 2005 at 3:42 am Thanks for sharing It really works :-)) Reply somebody says: February 12, 2006 at 6:02 am Thanks alot, that was really helpful Reply rk says: February 22, 2006 at 3:08 am Saved a lot of my time!!! Excellent! 🙂 Reply Sri says: April 4, 2006 at 11:23 am It can also be due to the fact, connection is not closed before trying to reopen it. Reply viagra says: May 6, 2006 at 7:43 am phe