The Type Or Namespace Name 'SqlServer' Does Not Exist In The Namespace 'System.Data'


I have created a .net class library and i include the namespace :

using System.Data.SqlServer

but when i build my .net class library i get the folowing error:

The type or namespace name 'SqlServer' does not exist in the namespace 'System.Data' (are you missing an assembly reference?) 


your help is highly appreciated

Best regards


Error: 'Dts' Does Not Exist In The Namespace 'Microsoft.Sqlserver'

I tried to create a package from a C# program, and I copied this from SQL server online book:

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XML Data Type & Namespace Problem

I have a problem with adding a namespace declaration to my XML query. As soon as I add the namespace declaration to the final XQuery most of my nodes disappear from the document. I've got a simplified version of it here so people can run it.

If I remove the declare clause (in red) it works and you see all the nodes but then I don't have the namespace. So it seems to be that the subquery (in {}) isn't recognising the namespace declaration?

declare @Tmp table (nodeValue int)
insert into @Tmp (nodeValue) values (1)
insert into @Tmp (nodeValue) values (2)
insert into @Tmp (nodeValue) values (3)

declare @x xml
set @x = (
from @Tmp
for xml path('node'), root('root'), type

select @x.query('declare default element namespace "";
for $node in /root/node
<proj class="something" key="{ data($node/nodeValue) }" />

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Articles About Data Access Using System.Data.SqlClient Namespace?

Aaarrgghhhhhhh, still searchin' for a nice step-by-step article to learn data access (all insert delete update commands) with the SQL Server .NET Data Provider found in [System.Data.SqlClient] namespace....

Can anyone plz help me to find it?

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The Type Or Namespace Name 'SqlDataReader' Could Not Be Found

    public static DataReader GetPhotoById(int pPhotoId)    {        return MyFile.Providers.SqlFileProvider.Instance.PhotoGetById(pPhotoId);    }That code is throwing me up the following error : Error    1    The type or namespace name 'DataReader' could not be found (are you missing a using directive or an assembly reference?)    D:wwwWebSite1App_CodePhotoManager.cs    18    19    D:wwwWebSite1I'm pretty stuck to whats wrong? Any suggestions?Sorry, i'm really new to all this framework (and even this website);Dougal

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Why Do I Need Microsoft.SqlServer.Dts.Runtime.Wrapper Namespace


It states pretty clearly in the documentation for the Microsoft.SqlServer.Dts.Runtime.Wrapper namespace that "This assembly is a Primary Interop Assembly (PIA) for the namespace Microsoft.SqlServer.Dts.Runtime, which is the assembly Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll). The classes in this namespace should not be instantiated. Instead, use the classes found in the Microsoft.SqlServer.Dts.Runtime. "


And yet as I have found out earlier today and talked about here, sometimes it is absolutely necassary to use Microsoft.SqlServer.Dts.Runtime.Wrapper. Why is this? Why is there no class in Microsoft.SqlServer.Dts.Runtime that allows me to access the specific connection managers rather than using the generic ConnectionManager class?






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Where Can I Find Microsoft.SqlServer.Management.Smo Namespace?

Where can I find the reference to Microsoft.SqlServer.Management.Smo in SQL Server 2005?
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Thanks in advance,
Ruben Pieters

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CLR Function Error 6522 Using System.IO Namespace

I created a clr proc that gets the most recent file within a directory based on the creation time property, see code below.  I have attempted to replicate this within a clr scalar valued function in order to assign the resulting value to a variable within SQL server.  I am getting the error message:

Msg 6522, Level 16, State 2, Line 1

A .NET Framework error occurred during execution of user-defined routine or aggregate "clr_fn_recentfile":

System.InvalidOperationException: Data access is not allowed in this context. Either the context is a function or method not marked with DataAccessKind.Read or SystemDataAccessKind.Read, is a callback to obtain data from FillRow method of a Table Valued Function, or is a UDT validation method.


at System.Data.SqlServer.Internal.ClrLevelContext.CheckSqlAccessReturnCode(SqlAccessApiReturnCode eRc)

at System.Data.SqlServer.Internal.ClrLevelContext.GetCurrentContext(SmiEventSink sink, Boolean throwIfNotASqlClrThread, Boolean fAllowImpersonation)

at Microsoft.SqlServer.Server.InProcLink.GetCurrentContext(SmiEventSink eventSink)

at Microsoft.SqlServer.Server.SmiContextFactory.GetCurrentContext()

at Microsoft.SqlServer.Server.SqlContext.get_CurrentContext()

at Microsoft.SqlServer.Server.SqlContext.get_Pipe()

at clr_fn_recentfile.clr_fn_recentfile.clr_fn_recentfile(SqlString Filepath)

After trying to troubleshoot this I am aware that this error is rather generic and have not been able to find any specific documenation regardint the use of file system objects with clr functions.  I am at a loss.  Any help would be appreciated!

Code Snippet
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports Microsoft.SqlServer.Server
Imports System.IO
Partial Public Class clr_recentfile
Public Shared Sub clr_recentfile(ByVal Filepath As SqlString)
Dim strFile As String
Dim sp As SqlPipe = SqlContext.Pipe()
Dim maxDate As Date
Dim fil As String
Dim qry As New SqlCommand()
If Directory.Exists(Filepath.ToString) Then
For Each strFile In Directory.GetFiles(Filepath.ToString)
fil = Path.GetFileName(strFile).ToString
Dim fi As New FileInfo(strFile)
If maxDate = Nothing Then
maxDate = fi.CreationTime
fil = fi.FullName.ToString
If maxDate < fi.CreationTime Then
maxDate = fi.CreationTime
End If
End If
sp.Send("Directory does not exist")
End If
If fil <> Nothing Then
qry.CommandText = " SELECT '" & fil & "'"
'Execute the query and pass the result set back to SQL
End If
Catch ex As Exception
End Try
End Sub
End Class


Code Snippet
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports Microsoft.SqlServer.Server
Imports System.IO
Partial Public Class clr_fn_recentfile
<Microsoft.SqlServer.Server.SqlFunction()> _
Public Shared Function clr_fn_recentfile(ByVal Filepath As SqlString) As SqlString
Dim strFile As String
Dim sp As SqlPipe = SqlContext.Pipe()
Dim maxDate As Date
Dim fil As String
Dim qry As New SqlCommand()
If Directory.Exists(Filepath.ToString) Then
For Each strFile In Directory.GetFiles(Filepath.ToString)
fil = Path.GetFileName(strFile).ToString
Dim fi As New FileInfo(strFile)
If maxDate = Nothing Then
maxDate = fi.CreationTime
fil = fi.FullName.ToString
If maxDate < fi.CreationTime Then
maxDate = fi.CreationTime
End If
End If
sp.Send("Directory does not exist")
Exit Function
End If
If fil <> Nothing Then
Return fil
End If
Catch ex As Exception
End Try
End Function
End Class

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Error: The Type Or Namespace Name 'DataReader' Could Not Be Found

In my DAL:using System;using System.Collections;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public DataReader getPersonList2() {        using (SqlConnection conn = getConnection())        {            SqlCommand cmd = new SqlCommand("PERSON_SP_getPersonList", conn);            cmd.CommandType = CommandType.StoredProcedure;            conn.Open();            return cmd.ExecuteReader();        }    }In my BLL:using System;using System.Collections;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;DAL d = new DAL();public DataReader getPersonList2(){        return d.getPersonList2();    }I get the following error in my BLL: Compiler Error Message: CS0246: The type or namespace name 'DataReader' could not be found (are you missing a using directive or an assembly reference?)
Source Error:

Line 34: }Line 35: Line 36: public DataReader getPersonList2(){Line 37: return d.getPersonList2();Line 38: }

Source File: c:InetpubwwwrootstudyApp_CodeBLL.cs
   Line: 36
Just wondering if someone could tell me why this is happening? I have the same namespaces that I have in the DAL in my BLL.Puzzled.

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I have been using the ServiceBrokerInterface example for a project of mine and so far it has been very successfull. However , I recently attempted to use it to send a large-ish message (32K xml file from MS Word) to SQL. The message is recieved but the Body member of the message is null when I try to retrieve the data from within my stored procedure CLR method.

The only differences I can see between the message that does not work and those that do are that the one that doesn't is large and it is XML data that I read from a .xml file produced by MS Word as opposed to internally generated strings in the other working messages.

Does anybody have any suggestions as to why the body of the message is not being sent in this case?
Is there something about the example code that precludes sending this type of message?

This is the code that sends the message (extracted from Conversation.cs in ServiceBrokerExample)

            string query = "SEND ON CONVERSATION @ch MESSAGE TYPE @mt ";
            param = cmd.Parameters.Add("@ch", SqlDbType.UniqueIdentifier);
            param.Value = m_handle;
            param = cmd.Parameters.Add("@mt", SqlDbType.NVarChar, 255);
            param.Value = message.Type;

            if (message.Body != null)
                query += " (@msg)";
                param = cmd.Parameters.Add("@msg", SqlDbType.VarBinary);
                param.Value = new SqlBytes(message.Body);
                param.Size = -1;
            cmd.CommandText = query;

This is the code that reads the message from the SQL queue (extracted from Message.cs in ServiceBrokerExample)

            m_reader = reader;
            m_convGroupId = reader.GetGuid(0);
            m_conv = new Conversation(service, reader.GetGuid(1));
            m_sequenceNumber = reader.GetInt64(2);
            m_serviceName = reader.GetString(3);
            m_contractName = reader.GetString(4);
            m_type = reader.GetString(5);
            m_validation = reader.GetString(6);
            if (!reader.IsDBNull(7))
                SqlBytes sb = reader.GetSqlBytes(7);
                Body = sb.Stream;
                Body = null;

This is the MESSAGE TYPE used by this message.


Here is the code where msgReceived.Body == null in the SQL CLR method invoked by this message.

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods"), System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1822:MarkMembersAsStatic"), BrokerMethod("AssessmentContract", "CreateReport_Command")]
    public void CreateReport_Command(
        Message msgReceived,
        SqlConnection connection,
        SqlTransaction transaction)
        StreamReader reader = null;

            reader = new StreamReader(msgReceived.Body);

And finally here is the code snippet that creates the stream that gets loaded into the message to be sent.

            if (Report != null && ReportName != null)
                MemoryStream ReportBody = new MemoryStream();

                if (ReportID == null)
                    ReportID = Guid.NewGuid().ToString();

                ReportBody.Write(Encoding.ASCII.GetBytes(ReportID), 0, ReportID.Length);
                ReportBody.Write(Encoding.ASCII.GetBytes("|".ToCharArray()), 0, 1);
                ReportBody.Write(Encoding.ASCII.GetBytes(ReportName), 0, ReportName.Length);
                ReportBody.Write(Encoding.ASCII.GetBytes("|".ToCharArray()), 0, 1);
                ReportBody.Write(Encoding.ASCII.GetBytes(Report), 0, Report.Length);

                Microsoft.Samples.SqlServer.Message request = new Microsoft.Samples.SqlServer.Message("CreateAssessmentReport_Command", ReportBody);

                // Send the message to the service
                dialog.Send(request, conn, tran);

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CS0246: The Type Or Namespace Name 'SqlConnection' Could Not Be Found (are You Missing A Using Directive Or An Assembly Reference?)

Hello,I just lost all my data doing a system restore and now trying to rebuild my web project.However, Am getting the error below, trying to use a class to run my Stored procedure.What is wrong herethanksEhiCompiler Error Message: CS0246: The type or namespace name 'SqlConnection' could not be found (are you missing a using directive or an assembly reference?)Source Error:Line 22: //SqlConnection con = new SqlConnection("cellulant_ConnectionString");
Line 23: //SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["cellulant_ConnectionString"].ToString());
Line 24: SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["cellulant_ConnectionString"].ToString());
Line 25:
Line 26: Source File: c:inetpubwwwrootcellulant1App_Codesignup_data-entry.cs    Line: 24   using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public class signup_data_entry
public signup_data_entry(DateTime dob1)

//SqlConnection con = new SqlConnection("cellulant_ConnectionString");
//SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["cellulant_ConnectionString"].ToString());
SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["cellulant_ConnectionString"].ToString());

SqlCommand command = new SqlCommand("Cellulant_Users_registration", con);
command.CommandType = CommandType.StoredProcedure;


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Does anyone know the namespace for dts...I have tried Import Namespace="Microsoft.SQLServer.DTSPkg80" etc but it returns dts.package not defined. My code is;

Sub BtnUpload_click(Sender As Object, E As EventArgs)

Dim opkg As New DTS.Package
Dim sServer As String
Dim sPackageName As String, sMessage As String
Dim sUser As String
Dim lErr As Long, sSource As String, sDesc As String
' Set Parameter Values
sServer = "Local"
sPackageName = "DTS_ExamResults"
sMessage += theUser
oPKG.LoadFromSQLServer(sServer, ,
DTSSQLServerStorageFlags.DTSSQLStgFlag_UseTrustedC onnection, , , ,

End Sub

All I am trying to do is run an existing dts package. Any help would really be appreciated.


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Dim NS As New SQLNS.SQLNamespace, Str as String

Str = "Server=SQLTEST;Trusted_Connection=Yes;"
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Str, Handle.ToInt32)
NS = Nothing
NS = New SQLNS.SQLNamespace
Str = "Server=SQLPROXY;Trusted_Connection=Yes;"
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NS = Nothing

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I've tried all Security settings via "CoSetProxyBlanket" but without success. Can anybody help me sort out this issue.

Thanks and regards
Mittal Vinay

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plz advise
Object reference not set to an instance of an object. 
namespace myNameSpace{   
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I have now to include a reference on it, but I can´t find the file, belonging to this namespace. Somebody knows, where this namespace is included, or where can I find it?


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After upgrading to SP2 for our ReportServer boxes, we began noticing discrepancies with our reports that were exported to XML (using the "Microsoft.ReportingServices.XmlRendering.dll") that were not present in SP1.  A discrepancy of particular consequence was the insertion of a new XML namespace in the root element:
      xmlns: p1=""
               ^ (added a space before "p1" to avoid an emoticon)
Now, it would be one thing is something actually used that "p1" prefix later in the XML, but that is not that case!  The only thing that uses that "p1" namespace is an attribute that was automatically inserted at the root element level (p1: schemaLocation="..."), which also seems unimportant.  Nonetheless, this has caused us unexpected XPath query issues as we were not acknowledging the new namespace in our .NET code.
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C:Program FilesMicrosoft SQL Server90Setup BootstrapLOGSummary.txt looks fine except for the last few lines:

Machine         : ROVER
Product         : Microsoft SQL Server 2005 Tools
Product Version : 9.1.2047.00
Install         : Failed
Log File        : c:Program FilesMicrosoft SQL Server90Setup BootstrapLOGFilesSQLSetup0004_ROVER_Tools.log
Last Action     : InstallFinalize
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Is this a common error when installing on a PC that is part of a corporate network? I didn't dig too far into SQLSetup0004_ROVER_Tools.log; however, it contains a few references to "SOFTWARE RESTRICTION POLICY".

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const string WmiNamespace = @"\localhost
const string WmiRSClass = @"MSReportServerReportManager_ConfigurationSetting";

scope = new ManagementScope(WmiNamespace);

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Line 57:
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System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +13
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System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3743
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Unable To Cast COM Object Of Type 'System.__ComObject' To Class Type 'System.Data.SqlClient.SqlConn

Dear all,
I am stuck with a SSIS package and I can€™t work out. Let me know what steps are the correct in order to solve this.
At first I have just a Flat File Source and then Script Component, nothing else.

[Script Component [516]] Error: System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to class type 'System.Data.SqlClient.SqlConnection'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface.    at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.HandleUserException(Exception e)    at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.AcquireConnections(Object transaction)    at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper90 wrapper, Object transaction)
Script Code (from Script Component):
' Microsoft SQL Server Integration Services user script component
' This is your new script component in Microsoft Visual Basic .NET
' ScriptMain is the entrypoint class for script components
Imports System
Imports System.Data.SqlClient
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
    Inherits UserComponent
    Dim nDTS As IDTSConnectionManager90
    Dim sqlConnecta As SqlConnection
    Dim sqlComm As SqlCommand
    Dim sqlParam As SqlParameter
    Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
        Dim valorColumna As String
        Dim valorColumna10 As Double
        valorColumna = Row.Column9.Substring(1, 1)
        If valorColumna = "N" Then
            valorColumna10 = -1 * CDbl(Row.Column10 / 100)
            valorColumna10 = CDbl(Row.Column10 / 100)
        End If
        Me.Output0Buffer.PORCRETEN = CDbl(Row.Column11 / 100)
        Me.Output0Buffer.IMPRETEN = CDbl(Row.Column12 / 100)
        Me.Output0Buffer.EJERCICIO = CInt(Row.Column2)
        Me.Output0Buffer.CODPROV = CInt(Row.Column7)
        Me.Output0Buffer.MODALIDAD = CInt(Row.Column8)
        Me.Output0Buffer.NIFPERC = CStr(Row.Column3)
        Me.Output0Buffer.NIFREP = CStr(Row.Column4)
        Me.Output0Buffer.NOMBRE = CStr(Row.Column6)
        Me.Output0Buffer.EJERDEV = CDbl(Row.Column13)
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            .Parameters("@NIFPerc").Value = CStr(Row.Column3)
            .Parameters("@NIFReP").Value = CStr(Row.Column4)
            .Parameters("@Nombre").Value = CStr(Row.Column6)
            .Parameters("@CodProv").Value = CInt(Row.Column7)
            .Parameters("@Modalidad").Value = CInt(Row.Column8)
            .Parameters("@ImpBase").Value = valorColumna10
            .Parameters("@PorcReten").Value = CDbl(Row.Column11 / 100)
            .Parameters("@ImpReten").Value = CDbl(Row.Column12 / 100)
            .Parameters("@EjerDev").Value = CDbl(Row.Column13)
        End With
    End Sub
    Public Overrides Sub AcquireConnections(ByVal Transaction As Object)
        Dim nDTS As IDTSConnectionManager90 = Me.Connections.TablaMODELO80
        sqlConnecta = CType(nDTS.AcquireConnection(Nothing), SqlConnection)
    End Sub
    Public Overrides Sub PreExecute()
        sqlComm = New SqlCommand("INSERT INTO hac_modelo180(Ejercicio,NIFPerc,NIFReP,Nombre,CodProv,Modalidad,ImpBase,PorcReten,ImpReten,EjerDev) " & _
    "VALUES(@Ejercicio,@NIFPerc,@NIFReP,@Nombre,@CodProv,@Modalidad,@ImpBase,@PorcReten,@ImpReten,@EjerDev)", sqlConnecta)
        sqlParam = New SqlParameter("@Ejercicio", Data.SqlDbType.SmallInt)
        sqlParam = New SqlParameter("@NIFPerc", Data.SqlDbType.Char)
        sqlParam = New SqlParameter("@NIFReP", Data.SqlDbType.Char)
        sqlParam = New SqlParameter("@Nombre", Data.SqlDbType.VarChar)
        sqlParam = New SqlParameter("@CodProv", Data.SqlDbType.TinyInt)
        sqlParam = New SqlParameter("@Modalidad", Data.SqlDbType.SmallInt)
        sqlParam = New SqlParameter("@ImpBase", Data.SqlDbType.Decimal)
        sqlParam = New SqlParameter("@PorcReten", Data.SqlDbType.Decimal)
        sqlParam = New SqlParameter("@ImpReten", Data.SqlDbType.Decimal)
        sqlParam = New SqlParameter("@EjerDev", Data.SqlDbType.Decimal)
    End Sub
    Public Sub New()
    End Sub
    Public Overrides Sub ReleaseConnections()
    End Sub
    Protected Overrides Sub Finalize()
    End Sub
End Class
Thanks a lot for your help  

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I get the following message in the vs2005 querybuilder when i do a preview:


SQL Execution Error.

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Error Source: SQL Server Compact Edition ADO.NET Data Provider

Error Message: @PARAM1 : Unable to cast object of type 'System.Data.SqlTypes.SqlInt32 to type System.IConvertable'.

The same querypreview works fine without the parameter:


SELECT Schoolindex, Variant, VVSchool, [index], indincl, VVRuimtes, School FROM School WHERE (Schoolindex = 186)


Can anybody tell me why this is?
And tell me a way to get the tableadapter working?


Anne-Jan Tuinstra

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I have created a windows library control that accesses a local sql database

I tried the following strings for connecting

Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Trusted_Connection = true"

Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Integrated Security=SSPI"


I am not running the webpage in a virtual directory but in


and I have a simple index.html that tries to read from an sql db but throws

the error

System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
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   at System.Security.PermissionSet.Demand()
   at System.Data.Common.DbConnectionOptions.DemandPermission()
   at System.Data.SqlClient.SqlConnection.PermissionDemand()
   at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
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etc etc

 The action that failed was:
The type of the first permission that failed was:
The Zone of the assembly that failed was:

I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security

I think that a windows form connecting to a sql database running in a webpage should be simple

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Request For The Permission Of Type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=, Culture=neutral, Pu

I created a .net console application within which I connect to a sql server (not local) as follows,

string conn_str = "Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=QuantEquitySql;Data Source=server name";

SqlConnection conn = new SqlConnection(conn_str);

Everything works fine when I run it from my computer. When I try to run it from a network share I get the following error,
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A First Chance Exception Of Type 'System.Data.SqlClient.SqlException' Occurred In

I've written this code multiple times now. But for the first time i get an error at the line underlined. My procedure runs perfectly when i execute it through Sql Query analyzer.
plzz help.. Its urgent and am unable to find the reason for this error "A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in"
Thanks !SqlConnection conn = new SqlConnection(DbConnectionString);
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "dbo.rqryTradesPRR";
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SqlDataReader reader = cmd.ExecuteReader();
// have written something here

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hi  i dont know how to do type casting.

this.Variables.ObjVariable this objVariables i have create in variable place below like this


Name:Variable datatype int32 values 0

Name: NumberofRowsdatatype int32  values 10000

Name: ObjVariable  datatype Object


My code



public override void CreateNewOutputRows()



Add rows by calling the AddRow method on the member variable named "<Output Name>Buffer".

For example, call MyOutputBuffer.AddRow() if your output was named "MyOutput".


System.Data.OleDb.OleDbDataAdapter oLead = new System.Data.OleDb.OleDbDataAdapter();

//System.Data.Odbc.OdbcDataAdapter oLead = new System.Data.Odbc.OdbcDataAdapter();

//SqlDataAdapter oLead = new SqlDataAdapter();

System.Data.DataTable dt = new System.Data.DataTable();

DataSet ds = (DataSet)this.Variables.ObjVariable;  // here i am getting error


ADODB.Record rs = new ADODB.Record();


oLead.Fill(ds, rs, "Variables");

foreach (DataRow row in dt.Rows)




Output0Buffer.Column = (int)row["Column"];

Output0Buffer.Column1 = row["Column1"].ToString();

Output0Buffer.Column2 = row["Column2"].ToString();





This is the error

Unable to cast object of type 'System.Object' to type 'System.Data.DataSet'.

at ScriptMain.CreateNewOutputRows()

at UserComponent.PrimeOutput(Int32 Outputs, Int32[] OutputIDs, PipelineBuffer[] Buffers)

at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers)




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