data-platform-development-forums,adonet-datasetRelated issues-Collection of common programming errors

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  data-platform-development-forums adonet-entity-framework-and-linq-to-entities
  I have a database and web application running from our main source control server. Every few days my web application stops working.I connect my remote debugger and note that the error occurs as soon as I am calling SaveChanges();The error will go away after I reboot the server and will come back after about three to four days. I can still open the database and view it’s contents using sql management studio.
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  data-platform-development-forums adonet-entity-framework-and-linq-to-entities
  I have a website written in ASP.NET MVC and .Net 4.0 hosted on a shared server running SQL Server 2008 R2. The Website has worked pretty much without problems for weeks.Last week-end I started getting a Fatal Error 9001 after log in. I have queried the problem with the host’s helpdesk for the last week, but the support team there is adamant that there is nothing wrong, nothing at all, with their server and that the problemlies either with the website or is specific to the .Net 4.0. framework.I h
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  data-platform-development-forums adonet-managed-providers
  Hi ,I have an Asp.net application(VS 2012) written in C# and using Sql 2012 as backend.I am getting aInternal Connection fatal error while reading from the sqldatareader.this is my code where  i am getting error.using (SqlDataReader documents = databaseConnector.Execute(“sp_SELECT_G”, databaseParameters))  { while (documents.Read()){    //CODE                     }  }the full stack of error is as below.Inte
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  data-platform-development-forums adonet-managed-providers
  I have a C# Windows Forms application that access SQL Server 2000.The server is a Windows 2003 and the clients are Windows XP Pro.Sometimes application return the following erro (it can be after 5 min or 1 hour):Message:    Internal connection fatal error.Source:     System.DataStackTrace: at System.Data.Common.DbDataAdapter.UpdatingRowStatusErrors(RowUpdatingEventArgs rowUpdatedEvent, DataRow dataRow)at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)  
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  data-platform-development-forums adonet-managed-providers
  Warning: Fatal error 9100 occurred at Dec 7 2006 7:33PM. Note the error and time, and contact your system administrator.at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)at Spinalogic.frmClinicalAnalysis.DoSave() in C:\Spinalogic\Spinalogic 2006 09 03\frmClinicalAnalysis.vb:line 2677Current User: xxxxxProductName: SpinalogicVersion: 1.0.2532.22729Executable Path: C:\Program File
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  data-platform-development-forums adonet-managed-providers
  hi i had created a window service, which fetches data from database fequenlty and pass the value to another machine. its works fine before. but the service is writing the following error in the ErrorLog Text, “Internal Connection Fatal Error”. i had addressed the stackinfo for the error. please provide me any solution. at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateO
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  data-platform-development-forums adonet-managed-providers
  I have a C# application that includes legacy C++ COM projects as part of the solution.  If I stop debugging, edit the C++ COM object and try to recompile I get an error like:LINK : fatal error LNK1168: cannot open .\Debug/SDTCustomizableDataForms.dll for writingI have to restart Visual Studio 2005 (RTM version) to get the file released so it can be writtern.How do I get around this?  I thought this was suppose to get fixed in VS 2005?Alicia
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  data-platform-development-forums adonet-managed-providers
  I am attempting to read several million records from a SQL Server 2012 database. The table I am reading from is of the following form:CREATE TABLE [dbo].[case_waveform_data] ([case_id] INT NOT NULL,[channel_index] INT NOT NULL,[seconds_between_points] REAL NOT NULL,[last_time_stamp] DATETIME NOT NULL,[value_array] VARBINARY (8000) NULL);Ultimately I am reading in each record, decompressing the value_array, combin
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  data-platform-development-forums adonet-managed-providers
  Our staging web application on .Net 4.0 and SQL Server 2008 R2 was running smooth for more then 2 months. All of a sudden, we started getting error in the application saying:Error Message: System.InvalidOperationException: Internal connection fatal error. at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObjectstateObj) at System.Data.SqlClient.SqlDataReader.HasMoreResults()This
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  msdn
  data-platform-development-forums adonet-entity-framework-and-linq-to-entities
  Hi, We have a data access layer with POCO classes mapped to stored procedures in the database. We sometimes get errors such as “Server: Msg 208, Level 16, Line 1 Invalid object name ‘xxx'” in the database, usually because someone missed a step in the databasedeployment (user creation, permissions, linked server etc). This can be seen very easily in the SqlServer Management Studio or Profiler.The problem is that when we run the application, this type of error does not generate
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  data-platform-development-forums adonet-dataset
  I created a class library project a while ago using VS 2005.  We recently upgraded to VS 2008  .net 3.5  and I have had to make some changes to the class.  The class, called ACCT, is a data set created with table adapters.   When I ran the conversion wizard, there were no errors but after I made my changes to the class and rebuild the app, I received errors on every table adapter, data table, relation, etc in the class.  The errors were all the same….  ‘tableSensors is already declared as  Pr
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  msdn
  data-platform-development-forums adonet-dataset
  Hello, I’m having some problems using the DataSet wizard (“TableAdapter Configuration Wizard”)  in VS2005. I’m telling it to base the select on a simple sproc (that takes two params, both int), however, once I get to the final screen (“Wizard Results”), it has the following message for me.———The Wizard has detected the following problems when configuring the TableAdapter: “SomeProc”:Details:Generated SELECT statement.    Invalid object name ‘#temptable’.To add
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  data-platform-development-forums adonet-dataset
  With Dataset constraints enabled, I fill the dataadapter with the schema and data from a few tables and then several views. The first view always fails because of constraints (see msg below). It does not matter which view I put first. I can also load ALL my tables and then the views and the first view still always fails to fill but the remaining views always fill just fine. This seems rather odd to me. I have checked and double checked there are no missing values or FK issues and I can execute t
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  data-platform-development-forums adonet-dataset
  Hi. My application uses SQL Compact 3.5 to store some data, but sometimes when I call the Update method the row state doesn’t change and the changes don’t persist. Here’s what I’m doing:’Debugging codeDebug.WriteLine(String.Join(vbCrLf, (From r As MyDataSet.MyRow In MyDataSet.MyTable Select r.RowState.ToString() & ” – ” & r.Id).ToArray()))MyTableAdapter.Update(MyDataSet.MyTable)’Same as aboveDebug.WriteLine(String.Join(vbCrLf, (From r As MyDataSet.MyRow In MyDataSet.MyTable Sel
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  data-platform-development-forums adonet-dataset
  “No mapping exists from object type ChangeBadgeStatusSaveTable to a known managed provider native type.”ChangeBadgeStatusSaveTable is a private class in my code that mirrors my new table type in the database. This table is a parameter to a procedure that saves the table. What is the cause and resolution to this?    /// <summary>    /// Structure of user-defined table type.    /// </summary>    private class SaveTab
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  data-platform-development-forums adonet-dataset
  i have two table.table 1code           description               sku                quantity1001            TV                           usa                   1001002            camera             &nb
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  data-platform-development-forums adonet-dataset
  I am stuck with VS2008 trying to work with multiple TableAdapters in my DataSet in my project. Currently I have 5 table adapters in my project and they all work fine. However, when I go to create a new TableAdapter, I go through the TableAdapterConfiguration Wizard to  create the TableAdapter and everything completes normally. I can even query and see the results properly in the wizard.The problem is when I go to use the TableAdapter (‘DataTable1TableAdapter’), it is not visi
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  data-platform-development-forums adonet-dataset
  I am trying to match rows between 2 datasets but only include the rows in the ‘edData’ dataset that have an ‘Used’ field of false.  If I do it with a LINQ query using a 2 key join and a where clause, it works.  For example:var deposits =    from bankRow in bankData.AsEnumerable()    join edRow in edData.AsEnumerable()        on new        {            a = bankRow.Field<decimal>(“Amount”),            b = “Deposit”        }        equals new        {            a = edRow.
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  msdn
  data-platform-development-forums adonet-dataset
  We are upgrading our databases from 10i to 11gR2. We have some ASP.NET VS2008 web apps running against those databases. In 10i, we are refering the Oracle.DataAccess.dll version1.102.4.0, Now with the upgrade of database, we start to refering Oracle.DataAccess.dllversion 2.112.1.0. But end results is surprising.The my code is something like thisSystem.Data.IDbConnection cxn = new Oracle.DataAccess.Client.OracleConnection(“Data Source=Northwind;User Id=User;Password=Password”);cxn.Open(
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  msdn
  data-platform-development-forums adonet-dataset
  Should I be able to pass procedure code like that shown below and get back multiple results sets via a Reader? Or?If I run the SQL below in the query tools (SQL Server 2008 R2) I get three result sets. If I try to pass the SQL dynamically I get a single Null set. (The SQL won’t run for anyone else as it is dependent on my local DB. But trust me that in the Query toolI get back two scalars and a table.)DECLARE @gParcel geography;SET @gParcel = (SELECT GeogFROM Parcels_Lite WHERE APN = 053-063-017

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