.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Unable to build connection string using Package Level variables from the AcquireConnection fonction

Posted By:      Posted Date: September 13, 2010    Points: 0   Category :Sql Server
Hi all! In SSIS 2008, within a script component trying to refer to a package level variables that was added to the ReadOnlyVariables collection of the component, the following fails within the AcquireConnnection function and I get this error: Error 1 Validation error. Test1: Test1: Microsoft.SqlServer.Dts.Pipeline.ReadOnlyVariablesNotAvailableException: The collection of variables locked for read access is not available at this point.     à Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.HandleUserException(Exception e)     à Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.AcquireConnections(Object transaction)     à Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper100 wrapper, Object transaction)   string connectionString = "DSN=" + this.Variables.MYDSN; Conn = new OdbcConnection(connectionString); Conn.Open();     If I move the previous code in the PreExecute function, it runs fine though.   Then, if I move the connectionString variable to the class definition, and populate it from within the PreExecute function and leave the last 2 lines in the AcquireConnection function, I get the following error: Error 1 Validation error. Test1: Test1: System.InvalidOperationException: The ConnectionString property

View Complete Post

More Related Resource Links

Unable to obtain password in the connection string


I am reading a connection string for SQL Authenicated user from the SSIS Package Configuration file which looks like

Data Source="ServerName";Initial Catalog="DB";User Id="UID";pwd="PWD";Integrated Security= false;Persist Security Info=True;


I am accessing the above connection string in the script task. But the conection string comes without the password and it says login failed for the user. I am unable to get the password. 


Any help is much appreciated. Thanks in advance.



accessing package level variables in a Script Component in 2008 version


how to access the package level variables within a script component in SSIS 2008

[SOLVED] .Net 2 Service unable to access Connection String in Machine.config

I have a Windows Service I have developed in Visual Studio 2005 (C#).

It accesses a database using a connection string in machine.config.

On my Windows XP Pro 32bit (SP3) machine, it works correctly.

On my new Windows 7 Pro 64bit machine, it throws "object not set to an instance of an object" when it gets to the line where it's trying use the connection string.
This is the 'object' which is not set in Windows 7:


The machine.config has the same connection string set up on both machines.

A .Net 2 website transferred to the Windows 7 machine has no problem accessing the same connection string.

I have tried a bunch of different permissions on the machine.config and its containing folders, and setting the service to log in as Admin, but I don't know exactly what permissions are required.

Does anyone know what's going on here? Many thanks.

SQL Connection String

We can learn or know how can we connect the database from our .net. This will help for freshers or .NET beginners!

abstract away the source of the connection string using a class with a static property.

ASP.NET provides a configuration system we can use to keep our applications flexible at runtime. In this article we will examine some tips and best practices for using the configuration system for the best results.

The element of a web.config file is a place to store connection strings, server names, file paths, and other miscellaneous settings needed by an application to perform work. The items inside appSettings are items that need to be configurable depending upon the environment, for instance, any database connection strings will change as you move your application from a testing and staging server into production.

Let's abstract away the source of the connection string using a class with a static property.

connection string question from a newbie


when publishing  in the webmatrix dialogue it asks for "destination connection string" for my "database.mdf"

I was not sure what it was so I pasted this from my web.config file :

Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\database.mdf;Integrated Security=True;User Instance=True

it all published ok, but wont run, so I guess it has somthing to do with this connection string or some kind of configuration issue.

My question is this, What should go in the field for "Destination connection string"

Unable to make connection to database?


Hy guys. I try to connect my database for so long so i wrote two type of codes. Let's discuse first on.

I have database called PhoneDirectory.

It have only one table named Residents.

I have button wiht ID="Button1".

I want when i click this button to see all of my residents. 

I want to see the result in DetailsView and to be able to edin, delete and add new resident.

First try with SqlDataSource so i wrote this:

<asp:SqlDataSource ID="Resident Details" runat="server" ProviderName="System.Data.SqlClient" ConnectionStrings="<%$ ConnectionStrings:ThisIsTheConnection%>" 
              SelectCommand = "SELECT * FROM Resident "

Modifying connection String in Web config using Install Wizard



Im trying to create a Web Deployment Project, the built in setup and deployment is very good in Visual Studio, i need to able to add an additional step in the setup to change the connection string in the Web config file. Ive seen a lot of articles on how to do this and in particular this http://weblogs.asp.net/scottgu/archive/2007/06/15/tip-trick-creating-packaged-asp-net-setup-programs-with-vs-2005.aspx#7162670 I am however stuck on the final part of this tutorial, im using the code Scott provided but have two errors,  heres part of my code where the errors are

using System;
using System.Configuration;
using System.Configuration.Install;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.DirectoryServices;

 void ConfigureDatabase(string targetSite, string targetVDir, string connectionString)
            // Retrieve "Friendly Site Name" from IIS for TargetSite
            DirectoryEntry entry = new DirectoryEntry("IIS://LocalHost/" + targetSit

System.IO.IOException: Unable to read data from the transport connection

Hello,   I have an xml webservice calling another xml web service and occasionally i get the following error - any ideas why?Does this happen when the request is made or when reading the response? Also how i can prevent it from happening? Thanks   System.IO.IOException: Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall. ---> System.Net.Sockets.SocketException: A blocking operation was interrupted by a call to WSACancelBlockingCall   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)   --- End of inner exception stack trace ---   at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size)   at System.IO.StreamReader.ReadBuffer(Char[] userBuffer, Int32 userOffset, Int32 desiredChars, Boolean readToUserBuffer)   at System.IO.StreamReader.Read(Char[] buffer, Int32 index, Int32 count)   at System.Xml.XmlTextReaderImpl.ReadData()   at System.Xml.XmlTextReaderImpl.InitTextReaderInput(String baseUriStr, TextReader input)   at System.Xml.XmlTextReaderImpl..ctor(String url, TextReader input, XmlNameTable nt)   at System.Xml.XmlTextReader..ctor(TextReader input)   at System.Web.Services.Protocols.SoapHttpClientProtocol.GetReaderForMessage(SoapClientMessage message, I

BinaryFormatter, SortedSet base class and a few instance variables.

/* This example successfully serializes and deserializes the SortedSet<string> base contents, but all the instance variables show up uninitialized. Here's the output: n1: 0 n2: 0 str: s == "String 1" s == "String 2" s == "String 3" Any ideas? */ using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.Serialization.Formatters.Binary; using System.Runtime.Serialization; using System.IO; [Serializable] public class MyObject : SortedSet<string> {     public MyObject() : base() { }     protected MyObject(SerializationInfo info, StreamingContext context)         : base(info, context)     {     }     public int n1 = 0;     public int n2 = 0;     public String str = null; } namespace BasicBinarySerializationInheritanceFromSortedSet {     class BasicBinarySerializationInheritenaceFromSortedSetTest     {         static void Main(string[] args)         {             {                 MyObject obj = new MyObject();   &nb

Custom security via connection string

Hi Is it possible to pass information into the SQL Server relational engine via the connection string in the same way as it can be done for Analysis Services? I need to generate a user context for a forms authentication application (i.e. no windows user accounts). SSAS allows you to pass in a list of database roles or a customdata parameter on the connection string. These can be used inside the database in lieu of a windows identity. I am wondering if there are equivalent parameters available for the SQL connection string.  I guess that I could create SQL logins from each of the forms users with a system generated password and then pass the uid and password on the connection string but this seems unnecessarily complicated. Andrew Wiles - www.it-workplace.com - MDX made simple

connection string

on the computer with sql management installed i use this and it works(server name):  .\SQLEXPRESS the computer name is: MAINCOMPUTER2 another computer on the network would use what? i can see  the c drives on either computer from either computer so i am connected.    

Can not get excel connection when calling an SSIS package from ASP

I have an SSIS package importing data from excel. I have coded it and deployed it on the sql 2008 server. I then execute it via a stored procedure with the following: select @cmd = 'C:\"Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\DTExec.exe" /sq "HRIS"' select   @cmd = @cmd + ' /SET \Package.Variables[User::path].Properties[Value];"' + @path + '"' exec   @rtn = master..xp_cmdshell @cmd   This works fine when  i execute it on my local machine. But when I try to call this Stored proc from my asp app (classic asp, not .net) I get the error: Code: 0xC0202009 Source: HRIS Connection manager "SourceConnectionExcel" Description: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft JET Database Engine" Hresult: 0x80004005 Description: "Unspecified error". End Error   Any help would be greatly apprecitated

Connection string

Hi There!I am doing a project using Visual Web Developer Express. I have built a database using MS SQL Server Express which I have installed together with Visual Web Developer Express. Please help me what sort of the connection string I should use in the pages of my website to establish connection to the database.Thank you

add new synchronization connection unable to process Put message

Environment is Server 2008 SP2, SQL Server 2008 CU2, Sharepoint 2010. Both Forefront services are started. I go to create the sync connection, select AD, use an account that has replication permissions. Populate containers works fine, select a container and click OK. After a bit, I get 'unable to process Put message'. Event logs, application show this error: Microsoft.ResourceManagement.Service: Microsoft.ResourceManagement.ResourceManagementException: Exception from HRESULT: 0x80230516 ---> System.Runtime.InteropServices.COMException (0x80230516): Exception from HRESULT: 0x80230516 at MIISRCW.IMMSServer.SetMVData(String pszMVDataXML) at Microsoft.ResourceManagement.SyncConfig.ModifyMVData(String mvDataXml) at Microsoft.ResourceManagement.ActionProcessor.SyncConfigActionProcessor.Update(Guid objectId, CultureInfo locale, IList`1 updateParameters, Guid cause) --- End of inner exception stack trace --- at Microsoft.ResourceManagement.ActionProcessor.SyncConfigActionProcessor.Update(Guid objectId, CultureInfo locale, IList`1 updateParameters, Guid cause) at Microsoft.ResourceManagement.ActionProcessor.SyncConfigActionProcessor.ProcessInputRequest(RequestType request) at Microsoft.ResourceManagement.ActionProcessor.ActionDispatcher.ProcessInputRequest(RequestType request) at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteAction(RequestType request) at Mi

problem in connection string

i have problem in connection strin i host my siteand database is in DATA DIRECTORYmy site run successfully in offline but an error of connection string in online pls give me an example of string for onlinei use asp.net, C# and sqlserver 2005
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend