Logging From A Custom Source Adapter
Apr 3, 2006
I'm having alot of trouble figuring out the proper way to log from inside my custom source adapter.
I couldn't find my useful information in MSDN, it mostly applies to logging from inside a script task.
I'd like to log my messages along with all the other SSIS package log entries, which I have going to the dts log table.
I'm assuming I should be using some functionality from Microsoft.SqlServer.Dts.RunTime, probably the LogProvider.
Can anyone advise?
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Jun 22, 2006
I am currently writing a custom source adapter that extracts data from a JD Edwards OneWorld system. In the custom user interface of the source component I need to allow the user to set a query (a custom property), and then refresh a list of output columns that will be extracted based upon that query (similar to the list shown in the advanced editor).
My question is, can I apply the custom property change to the component and build my output column list without closing and restarting my custom UI form? I understand that the IDTSComponentUI interface being implemented allows for transactional editing of the component, in that the changes to the component are not applied until I have returned a result in the implemented Edit() method. However is there a way to apply changes without returning this result (and closing my UI)?
Essentially I am looking to have similar behaviour to that of the 'Refresh' button in the advanced component editor form.
Thanks
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Apr 23, 2015
I would like to fire a pre execution event, grab the name of the stored procedure (source of the sql task), insert a record with the name and datetime, and then fire a post event that would update the record with a modified dated.
What is the best way to capture the source value name in the execute sql task.
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Jan 31, 2006
Hi All,
I have built a custom flat file destination adapter but it appears that the code is not working. When I debug the process I notice that the ProcessInput section is called multiple times. The first time it looks like everything is working, then it call it again and there is no inpout from the DTSInput90.
Why would it do this?
Thanks
Mike
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Sep 12, 2005
I recently read the project real ETL design best practices whitepaper. I too, want to do custom logging as I do today, and also use SSIS logging. The paper recommended using the variable system::PackageExecutionId to tie the 2 logging methods together.
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Jul 25, 2007
I am writing a custom task to import data from delimited files into SQL tables. I use the standard Flat File Source adapter, a custom transformation to add a URN column and a filename column to the data and the standard OLEDB Destination Adapter.
Most of my test data files work fine except for ones with a lot of columns (around 350 columns). I get an error when I call the ReinitializeMetaData() method for the destination adapter.
Q1) Is there a restriction on the number of columns (or data row size) that can be imported into an OLEDB Destination Adapter?
Q2) The reason I use this adapter rather than the SQL Server Destination Adapter is that I need to set the destination table name using a variable. I don't believe I can do this with the SQL Server Destination Adapter. Is this the case?
Q3) Anyone know of a better/alternative way of acheiving the above? One way I have thought of is to create a custom destination adapter using the SQL Server Destination adapter as the base but I'm not sure whether this is a) possible and b) worth the hassle.
Hope someone can help...
Cheers
Nick
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Jan 4, 2007
Hi All,
Using a data access mode of SQL Command, I have a stmt that returns one date ( e.g select max(LastChangedDate) from TblA ).
I want to store the result in a variable. How do I do this?
Cheers,
Tamim.
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Oct 30, 2007
I am using an "XML Source Adapter" in an SSIS Package to try and load an XML file into a database table. But having trouble with a date field.
The XSD defines the field as:-
<xs:element minOccurs="1" name="DateTime" type="xs: string" />
The XML looks like this:-
<DateTime>12/31/2007 10:12:14.123</DateTime>
And the database table column is defined:-
[DateTime] [datetime] NOT NULL,
So in the Data Flow I have a "Data Conversion Transformation" converting [DT_WSTR] to [DT_DBTIMESTAMP].
However, when I run the package I get:-
Error: 0xC02020C5 at Load XXX File, Data Conversion 1 [13550]: Data conversion failed while converting column "DateTime" (15100) to column "DateTimeDT" (15422). The conversion returned status value 2 and status text "The value could not be converted because of a potential loss of data.".
So what how do I fix it?
I don't mind losing some miliseconds of precision, so I have tried configuring the error output of the Data Conversion for this field to "ignore failure" for "Truncation". But that seems to have no effect.
I'd be happy to change the XSD to:
<xs:element minOccurs="1" name="DateTime" type="xs:dateTime" />
But the "XML Data Flow Source" doesn't seem to support the dateTime data type.
Any suggestions appreciated. Thanks.
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Jul 3, 2007
I'm working on a new project using SSIS in SQL Server 2005 and have an issue that I need resolved.
I'm loading an XML file into SSIS using the XML Source Adapter. This maps to an OLE DB destination which reads the data into a SQL table (please see below for the table structure). In between this stage is a data conversion to convert the Unicode characters from XML into non-Unicode characters.
CREATE TABLE [dbo].[XMLTest](
[Forename] [varchar](50) COLLATE Latin1_General_CI_AS NULL,
[Surname] [varchar](50) COLLATE Latin1_General_CI_AS NULL,
[PostCode] [varchar](50) COLLATE Latin1_General_CI_AS NOT NULL
)
The problem I have is with blank strings in xml are being inserted into the SQL table as NULL values and not blanks (see the xml below).
<Root>
<People>
<Forename>Duncan3</Forename>
<Surname></Surname>
<PostCode>ME16 0WH</PostCode>
</People>
</Root>
Correct me if I'm wrong but a null value in xml means the node does not exist (See the xml below)?
<Root>
<People>
<Forename>Duncan3</Forename>
<PostCode>ME16 0WH</PostCode>
</People>
</Root>
Please also find the schema attached for reference.
<?xml version="1.0"?>
<xschema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="Root">
<xs:complexType>
<xsequence>
<xs:element minOccurs="0" name="People">
<xs:complexType>
<xsequence>
<xs:element minOccurs="1" name="Forename" type="xstring" />
<xs:element minOccurs="0" name="Surname" type="xstring" />
<xs:element minOccurs="1" name="PostCode" type="xstring" />
</xsequence>
</xs:complexType>
</xs:element>
</xsequence>
</xs:complexType>
</xs:element>
</xschema>
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Nov 21, 2007
I am using the "XML Source Adapter" in an SSIS package.
I notice that although you can specify the XML filename as an expression, the XSD appears to have to be a fixed file path.
This is a problem for me since the path for the XSD is different in my development than it will be in production (in production it's on drive E:, which I don't have).
I'd like to have the file location specified in the config file, but since I can't make it an expression how can I do that?
Also, since they don't have Connection Managers I can't switch DelayValidation on.
Thanks.
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Apr 16, 2008
I am a business user trying to build an incremental ETL package with SSIS. I have a working prototype on SQL Server 2005 where I select the max(ID) from the last successful run and pass that value into a variable. Then, in my Data Flow step, I select an OLE DB source adapter and use this variable in a custom select statement.
Here's my challenge....the live data is actually in a Postgres DB so I have to use a Data Reader Source adapter. When I try to pass my variable to this adapter the job bombs out. Does anyone know how to dynamically update the query text inside a Data Reader source adapter using variables or otherwise?
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Jun 1, 2006
Hi,
Quick question on how SSIS handles queries from Data Source in a Data Flow. I noticed that when I run a particular query from Query Analyzer it takes forever. But, when I run the same query in SSIS data source in a data flow. The query results are immediate.
The query plan is already cached in SQL.
Is this just something which I am seeing incorrect or is there some bit of optimization in there in SSIS. As per my understanding SSIS does not optimize the source query.
Thanks,
Gaurav
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Feb 9, 2006
Hi
I am using Oledb Provider for Db2 from IBM. (There is another one from microsoft)
Through this provider I am constructing a oledb connection manager.
This connection manager I am Using in Oledb Source adapter.
Now when I set Data Access mode as Table or view I Am able to preview the data.
But when I use Data Access Mode as SQL Command try to preview I get this Error
TITLE: Microsoft Visual Studio
------------------------------
Error at s_NEWMAPPING10 [EMP [1]]: An OLE DB error has occurred. Error code: 0x80040E21.
------------------------------
ADDITIONAL INFORMATION:
Exception from HRESULT: 0xC0202009 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
BUTTONS:
OK
------------------------------
I am not able to figure out how to resolve this.
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Nov 16, 2015
I want to use the excel sheets located on a share point site as source, for this i downloaded the adapter from the following link URL....I got the connection manager to work, but when coming to load the excel files to the destination location its not doing what is intended. For example i want the destination location my local drive for the excel files, how can i do that which destination should i use?
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Dec 22, 2007
Hi,
I have a small requirement in SSIS Error Logging Mechanism.
Presently in my SSIS package i am using a File Connection Manager for creating a Log file.
I have a problem on this regard. Every time when i am executing my DTS package, the error log messages are getting appended to my error log at OS level (say D:error_messg.log). And for this reason whenever my DTS package is getting executed the size of the file is keep on increasing and there by killing my disk space.
I have a requirement for this error logging mechanism. At any time my log file should not exceed more than 20MB.
Or can we remove the log events a week ago or say more than 2 days or say. Just ensuring the log file do not fill up the disk space eventually.
How can we do this?
Any suggestions are greatly appreciated.
Thanks & Regards
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Dec 5, 2007
Hi All,
As Jamie Thomson has written:
http://blogs.conchango.com/jamiethomson/archive/2005/06/11/SSIS_3A00_-Custom-Logging-Using-Event-Handlers.aspx
'...we can attach an event handler to the package...and this one event handler will catch all events raised of that event type by every container in the package...'
Fine. Now what I want to do is catch all OnInformation events generated for the package, and disgard all apart from a subset, whose message contains a particular string. So the Q is, how do I/can I interrogate the message for the event that my handler has just caught?
Michael Coles has come up with a neat method of overriding sp_dts_addlogentry, (http://blogs.sqlservercentral.com/blogs/michael_coles/archive/2007/10/09/3012.aspx), but I want to do this within the package, not outside, to avoid the change becoming global to every package writing to the same sysdtslog90.
Hope this is poss.,
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Jan 14, 2008
Hi all,
I have a custom component for which I want to log entries, but I a quite new to SSIS and I do not understand ho to access the resulting logs.
I have overriden like this
public override void RegisterLogEntries()
{
LogEntryInfos.Add("Log entry",
"This is the log entry for the component",
Microsoft.SqlServer.Dts.Runtime.Wrapper.DTSLogEntryFrequency.DTSLEF_CONSISTENT);
}
and I am adding log messages like this
private void DtsLogMessage(string message)
{
DateTime now = DateTime.Now;
byte[] additionalData = null;
m_ComponentMetaData.PostLogMessage("Log entry",
m_ComponentMetaData.Name,
message,
now, now, 0, ref additionalData);
}
However, they do not appear in the log viewer.
Can you guys help ?
Thanks !
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Apr 18, 2008
I'm trying to implement a custom log table. To keep the discussion simple, let's say I only have 1 column in this table and all I want to write in it are
"Start" when the package starts
"Error" when it encounters an error
"Finish" when the package finishes. Even if there was an error, I still want to enter "Finish'.
My Control Flow has 3 task objects, 2 Execute SQL Tasks, and 1 Data Flow Task in between them.
The first Execute SQL Task does an insert statement for the Start and the second Execute SQL Task does an insert for the Finish.
To capture any package errors, I also have an Execute SQL Task (to insert "Error") in the Event Handler for OnError. I see that when I cause an error in my package it can raise multiple OnError events, which will envoke my Execute SQL Task multiple times. (This is good because it will allow me to write a line per error event with the error description.)
The problem I have is, how do I write the "Finish" log when I have an error? If I put the insert for the finish in the same Execute SQL Task with the errors, then it will write a "Finish" for every error. But I can't put it anywhere else because if I put it anywhere else, the package never makes it there because it stops at the OnError Event Handler.
Or is there a way for me to tell the package to do the 2nd Execute SQL Task all the time?
Lastly, is there a better way to do this kind of custom logging?
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Mar 17, 2006
I wrote a custom destination component. Everything works fine, except there is a logging message that is displayed that I cannot get rid of or correct. Here is the end of the output of a package containing my component:
Information: 0x40043009 at Data Flow Task, DTS.Pipeline: Cleanup phase is beginning.
Information: 0x0 at Data Flow Task, MyDestination: Inserted 40315 rows into C: empfile.txt
Information: 0x4004300B at Data Flow Task, DTS.Pipeline: "component "MyDestination" (9)" wrote 0 rows.
SSIS package "Package.dtsx" finished: Success.
I inserted a custom information message that contains the correct number of rows written by the component. I would like to either get rid of the last message "... wrote 0 rows", or figure out what to set to put the correct number of rows into that message.
This message seems to happen in the Cleanup phase. It appears whether I override the Cleanup method of the Pipeline component and do nothing, or not. Any ideas?
public override void Cleanup()
{
ComponentMetaData.FireInformation(0, ComponentMetaData.Name,
"Inserted " + m_rowCount.ToString() + " rows into " + m_fileName,
"", 0, ref m_cancel);
base.Cleanup(); // or not
}
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Oct 24, 2007
In my console application code which creates and executes SSIS package I have this code.
Code Block
provider.ConfigString = loggingConnection.Name;
package.LoggingOptions.SelectedLogProviders.Add(provider);
package.LoggingOptions.EventFilterKind = DTSEventFilterKind.Inclusion;
package.LoggingOptions.EventFilter = new string[] { "OnPipelineRowsSent","PackageEnd" };
package.LoggingMode = DTSLoggingMode.Enabled;
I use a custom log component to log the events. However the "PackageEnd" event does not seem to get fired at all.
Am I missing something in this?
Thanks
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Jan 12, 2008
Everyone,
I've been fighting a problem all day now. I have given in. I need help.
Here's the problem. I have a SSIS Custom Data Flow Source, for retrieving data from a proprietary data format. The component works great. I can use the Advanced Editor to select the connection to use (also a Custom Connection Manager) and a custom property. The custom property that is the name of a table to select data from.
I am in the process to building a simple UI that has a ComboBox of Connections (by name) and a ListBox of table names available in that connection.
I want to be able to pre-select the connection in the ComboBox if one is already populated. The problem is, I can't figure out how to get access to the connection name of the currently selected connection. When I look at the RuntimeConnectionsCollection[0], that connection is not acquired. I can't get access to the name, or any of its custom properties (see above that connection is Custom also).
Assume I use the Advanced Editor to select a connection to use, then open the custom UI.
How do I figure out what the name of the connection selected is? I know it is possible. The OLE DB Source does it.
Thanks,
Frank
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May 10, 2006
Hi
in the acquireconnection method Using the below statment I can get a connection Object
oledbConnection = cmado.AcquireConnection(transaction) as OleDbConnection;
from the connection object I can get the connectionstring from the object by calling
oledbConnection.connectionstring() property which will have all the details like DataBase, UserName & other Inofrmation but there is no password Info.
How to get the password Information, I need that information since I will use that info to make OCI calls to fetch the data from the Oracle database in m,y custome source component.
any help is much appriciated
thanks in advance.
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Mar 23, 2006
Hi,I have developed a custom source component to get data from a generic odbc connection with some special caracteristics.
The component works fine by getting and mapping the output fields etc...
The only two problems existing are that when i run the task it says that the data flow has no components inside... how is this possible since i have my source mapped to a flat file inside that data flow?
This is the error:
SSIS package "BVEIT000D.dtsx" starting.
Warning: 0x80047034 at BVEIT000D_<EMPRESA> TXT, DTS.Pipeline: The DataFlow task has no components. Add components or remove the task.
Information: 0x4004300C at BVEIT000D_<EMPRESA> TXT, DTS.Pipeline: Execute phase is beginning.
SSIS package "BVEIT000D.dtsx" finished: Success.
The other problem is that if i want to <ignore> a certain source column the component already shows me an error saying that the no column with ID 0 was found...
Any one with experience in creating custom components?
Regards,
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May 21, 2006
I need VB.NET source code showing how to create a Custom Component. in SSIS (All the ones I've seen are written in C#.)
TIA,
barkingdog
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Sep 26, 2007
I programmed a Source extension, that accesss a text file. In my code I have the following code to open a file:
protected override void reader(PipelineBuffer buffer)
{
TextReader reader = File.OpenText(_filename);
The komponnet works well. How do I grant permissions to access this text file? Because I got problems when I try to run my package using a task created in the SQL Server Agent.
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May 11, 2006
For the Custome source Component ErrorOutput, should I go for asynchronous / synchronous Output.
If i go for synchronous output
// Create the error output.
IDTSOutput90 errorOutput = ComponentMetaData.OutputCollection.New();
errorOutput.IsErrorOut = true;
errorOutput.Name = "ErrorOutput";
errorOutput.SynchronousInputID = What Id is required here;
errorOutput.ExclusionGroup = 1;
Is it the IDTSOutput90 InPut.ID / OutPut.ID which should be assigned.
Thanks Regards
Anil
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Aug 16, 2005
Ok, so I've looked near and far and have found nothing but info that says data flow properties can not be changed at runtime....then I see in this in the SSIS documentation under ADO.NET Source Custom Properties:
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Jan 15, 2008
I would like to write a custom data source component for SSIS. I was wondering if there are any tutorials / examples for this that are available.
Thanks
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Dec 6, 2007
Hi all,
I saw a couple of other posts here on this topic, but none quite got to my issue.
I'm trying to add error output to a custom source component (not a script, a custom component). The samples all seem to deal with transform components, and my issues seem to be unique to source components.
I have the following code related to error handling ...
Public Overloads Overrides Sub ProvideComponentProperties()
...
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection.New
output.Name = OUTPUTCOLUMNNAME
output.ExternalMetadataColumnCollection.IsUsed = True
ComponentMetaData.UsesDispositions = True
output.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
output.ErrorOrTruncationOperation = "Something got truncated or blew up"
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection.New
errorOutput.Name = ERRORCOLUMNNAME
errorOutput.IsErrorOut = True
...
End Sub
Public Overloads Overrides Sub ReinitializeMetaData()
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection(OUTPUTCOLUMNNAME)
Dim outColumn As IDTSOutputColumn90 = output.OutputColumnCollection.New
outColumn.Name = strName
outColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
Dim metadataColumn As IDTSExternalMetadataColumn90 = output.ExternalMetadataColumnCollection.New
metadataColumn.Name = outColumn.Name
metadataColumn.DataType = outColumn.DataType
metadataColumn.Precision = outColumn.Precision
metadataColumn.Length = outColumn.Length
metadataColumn.Scale = outColumn.Scale
metadataColumn.CodePage = outColumn.CodePage
outColumn.ExternalMetadataColumnID = metadataColumn.ID
outColumn.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
outColumn.ErrorOrTruncationOperation = "Something Truncated!"
outColumn.TruncationRowDisposition = DTSRowDisposition.RD_NotUsed
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection(ERRORCOLUMNNAME)
Dim errorColumn As IDTSOutputColumn90 = errorOutput.OutputColumnCollection.New
errorColumn.Name = outColumn.Name
errorColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
...
End Sub
The confusions I have are:
a) the stock advanced properties editor (I haven't provided a custom one) doesn't seem to "realize" that I have an error output, so provides no method to configure. I am believing it would need to know which Output columns can have their error/truncation redirected. I'd have thought setting ErrorRowDisposition on my output column would have been enough to trigger this ??
b) since I don't have any means of configuring, not surprisingly, when I try to connect my error output, designer complains that, "Ths error output cannot receive any error rows. This occurs for several reasons: Input columns or output columns are not yet defined. Error handling is not supported by the component. Error handling is not configured for the component."
c) UsesDispoistions would seem to be appropriate only for a transform component
Thanks for reading, and appreciate any help or pointers.
Bill
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Jan 17, 2006
Hello all ...
I'm looking at writing some customized insert, update and delete stored procs for a replication target. For various reasons I would like to write a "one size fits all" custom stored proc for each of these tasks.
It looks like I can get the data values passed as parameters just fine.
I was wondering if there's a way to also pass the source schema and table name as parameters, or to determine these on the fly in my all purpose stored procs. Some replication products refer to these types of values as "tokens" that can be included in the replication data stream sent to the target.
I can adjust the source database replication publications, and article definitions, but I cannot modify the actual source database tables to include these as values in data columns. It is possible a view that contains these elements as strings might fly, but I was hoping to avoid cluttering the source database.
A handy trick or technique would be helpful!
Thanks!
DB
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Jan 24, 2008
[One day I will come back here and answer questions, rather than only ask.]
I have a custom connection manager that returns an OleDbConnection. The only thing "custom" about the connection manager is how it determines its connection string. The object returned in AcquireConnection is an OleDbConnection.
Code:public override object AcquireConnection(object txn)
{
UpdateConnectionString();
OleDbConnection oleDbConnection = new OleDbConnection(this.connectionString);
oleDbConnection.Open();
return oleDbConnection;
}
Some of the objects within SSIS only work with an OleDbConnection, but mine is not recognized as such. Is there any way to have my connection recognized as a valid connection?
Thanks in advance.
-bms
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Mar 19, 2007
Hi,
I'm developing a Custom Report Item and would like to fill my properties dialog in design mode with real data. I have the name of the data source and the command text for the corresponding report dataset, read from the report design.
Is it possible to create an ado.net dataset so that I can display and use real data in my properties dialog box? First problem I have is to get the connection string from the data source string. I found no docs for that, especially the Microsoft.ReportingServices.DataExtensions.ReportDataSource class is not documented. Am I on the right way with that?
Thomas
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Mar 13, 2007
Hi,
I have implemented a custom source component that can be used as the data source in the Data Flow task.
I have also created a custom UI for this component by using the IDtsComponentUI .
But my component does not have the capability of setting the custom properties via the DTS Variables using the Expression Builder.
I have looked around for samples on how to do this, but I can only find samples of how to do this for custom Control Tasks, i.e. IDtsTaskUI.
My question is, How can implement the Expression Builder in my custom Source component + custom Source UI. Or do you know of any samples which I can look at.
Thank you,
Jameel.
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