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System.data.oledb.oledbexception Error
us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up system.data.oledb.oledbexception (0x80004005) Unspecified error while opening oledb Connection up vote 0 down vote favorite I am getting 'unspecified error while opening oledb Connection' Below are the stack trace details. Please help me to find a solution. [OleDbException (0x80004005): Unspecified error] System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +968957 System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +86 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +29 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +4863020 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117 System.Data.OleDb.OleDbConnection.Open() +40 ASP.aboutus_aspx.Page_Load(Object sender, EventArgs e) in C:\Sites\Single17\watchbroker\webroot\aboutus.aspx:22 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 vb.net oledb share|improve this question asked Mar 18 '14 at 7:49 Saurabh Tiwari 23211 add a comment| 2 Answers 2 active oldest votes up vote 2
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Tips/Tricks Top Articles Beginner Articles Technical Blogs Posting/Update Guidelines Article Help Forum Article Competition Submit an article or tip Post your Blog quick answersQ&A Ask a Question http://www.codeproject.com/Questions/125539/Unspecified-Error-OleDbException-was-unhandled-by View Unanswered Questions View All Questions... Linux questions C# questions ASP.NET questions SQL https://bytes.com/topic/visual-basic-net/answers/374261-unspecified-error-database-connection-multiple-threads questions fabric questions discussionsforums All Message Boards... Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI C# Free Tools Objective-C and Swift Database Hardware & Devices> System unspecified error Admin Hosting and Servers Java .NET Framework Android iOS Mobile SharePoint Silverlight / WPF Visual Basic Web Development Site Bugs / Suggestions Spam and Abuse Watch features Competitions News The Insider Newsletter The Daily Build Newsletter Newsletter archive Surveys Product Showcase Research Library CodeProject Stuff communitylounge Who's Who Most Valuable Professionals The Lounge The Insider News The Weird & The system.data.oledb.oledbexception unspecified error Wonderful The Soapbox Press Releases Non-English Language > General Indian Topics General Chinese Topics help What is 'CodeProject'? General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Ask a Question All Questions All Unanswered FAQ Unspecified Error - OleDbException was unhandled by user code, Help! Rate this: Please Sign up or sign in to vote. See more: VB Access VB.NET Hi, I get a problem with "Unspecified Error : OleDbException was unhandled by user code". I have a class for retriving datas from access database to datagridview. In rowpostpaint event of datagridview, it will call and get a returning value from a function. So, if i do something to refresh the datagridview repetely for a while, it will occure an error like this. Here is codes in DataGridViewRowPostPaint:
Private Sub gvemployee_RowPostPaint(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewRowPostPaintEventArgs) Handles gvemployee.RowPostPaint 'Try If Not e.IsLastVisibleRow Then If cancelselectedCell = 0 Then gvemployee.Rows(e.RowIndex).Cells(0).Value = e.RowIndex + 1 Dim theID As Integer theID = gvemployee.Rows(e.RowIndex).DataBoundItem("emp_id") Dim dr As OlAsk a Question Need help? Post your question and get tips & solutions from a community of 418,595 IT Pros & Developers. It's quick & easy. Unspecified error on Database Connection in Multiple Threads P: n/a Jerry Spence1 I am starting up a number of threads. Each one specifies a connection to the same database. Sub ReaderThread() Dim cn As New System.Data.OleDb.OleDbConnection cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbaseFile cn.Open() etc... After the 65th thread starts up I get the error: {System.Data.OleDb.OleDbException} [System.Data.OleDb.OleDbException]: {System.Data.OleDb.OleDbException} HelpLink: Nothing InnerException: Nothing Message: "Unspecified error" Source: "Microsoft JET Database Engine" StackTrace: " at System.Data.OleDb.OleDbConnection.ProcessResults(I nt32 hr) at System.Data.OleDb.OleDbConnection.InitializeProvid er() at System.Data.OleDb.OleDbConnection.Open() at EDAC_DataLogger.Form1.ReaderThread() in C:\Company\xxxxxxxxxx DataLogger Form1 V1.1.vb:line 212" TargetSite: {System.Reflection.RuntimeMethodInfo} The error on line 212 is the cn.Open() command. I don't know if there is something significant about opening 65 connections. If I do 64 threads it all runs OK. -Jerry Nov 21 '05 #1 Post Reply Share this Question 3 Replies P: n/a W.G. Ryan eMVP Jerry: connection objects aren't Thread Safe. I can't tell what's going on just from this - but it should blow up pretty quickly. When are you sending Command objects through? However, I just say that on GP - I'm guessing the connection pool is full on the Access DB. Please tell me that you aren't seriously trying to open > 5 connections to an access DB? -- W.G. Ryan MVP (Windows Embedded) TiBA Solutions www.tibasolutions.com | www.devbuzz.com | www.knowdotnet.com "Jerry Spence1" wrote in message news:41***********************@ptn-nntp-reader03.plus.net... I am starting up a number of threads. Each one specifies a connection to the same database. Sub ReaderThread() Dim cn As Ne