Hi all
I have an SSIS solution which currently analyses a given number of files in a directory, reads the lines out of those files, does some transformation, then produces a single CSV collation / transformation of the data (in a For Each Loop Container).
The dilemma I'm facing currently is concerning row numbers on the output file. I've used a script component which does output a sequence number, but what I'm not sure on is how I stop the sequence from resetting to 1 once the next file in the input sequence is processed.
I guess I need to pass a count back from the Data Flow - Script Component to the Control Flow somehow?
Any help is much appreciated. Please see the code in the Script Component below...
#region
Help: Introduction to the Script Component
/* The Script Component allows you to perform virtually any operation that can be accomplished in
* a .Net application within the context of an Integration Services data flow.
*
* Expand the other regions which have "Help" prefixes for examples of specific ways to use
* Integration Services features within this script component. */
#endregion
#region
Namespaces
using
System;
using
System.Data;
using
Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using
Microsoft.SqlServer.Dts.Runtime.Wrapper;
#endregion
///
<summary>
///
This is the class to which to add your code. Do not change the name, attributes, or parent
///
of this class.
///
</summary>
[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]
public
classScriptMain: UserComponent
{
#regionHelp: Using Integration Services variables and parameters
/* To use a variable in this script, first ensure that the variable has been added to
* either the list contained in the ReadOnlyVariables property or the list contained in
* the ReadWriteVariables property of this script component, according to whether or not your
* code needs to write into the variable. To do so, save this script, close this instance of
* Visual Studio, and update the ReadOnlyVariables and ReadWriteVariables properties in the
* Script Transformation Editor window.
* To use a parameter in this script, follow the same steps. Parameters are always read-only.
*
* Example of reading from a variable or parameter:
* DateTime startTime = Variables.MyStartTime;
*
* Example of writing to a variable:
* Variables.myStringVariable = "new value";
*/
#endregion
#regionHelp: Using Integration Services Connnection Managers
/* Some types of connection managers can be used in this script component. See the help topic
* "Working with Connection Managers Programatically" for details.
*
* To use a connection manager in this script, first ensure that the connection manager has
* been added to either the list of connection managers on the Connection Managers page of the
* script component editor. To add the connection manager, save this script, close this instance of
* Visual Studio, and add the Connection Manager to the list.
*
* If the component needs to hold a connection open while processing rows, override the
* AcquireConnections and ReleaseConnections methods.
*
* Example of using an ADO.Net connection manager to acquire a SqlConnection:
* object rawConnection = Connections.SalesDB.AcquireConnection(transaction);
* SqlConnection salesDBConn = (SqlConnection)rawConnection;
*
* Example of using a File connection manager to acquire a file path:
* object rawConnection = Connections.Prices_zip.AcquireConnection(transaction);
* string filePath = (string)rawConnection;
*
* Example of releasing a connection manager:
* Connections.SalesDB.ReleaseConnection(rawConnection);
*/
#endregion
#regionHelp: Firing Integration Services Events
/* This script component can fire events.
*
* Example of firing an error event:
* ComponentMetaData.FireError(10, "Process Values", "Bad value", "", 0, out cancel);
*
* Example of firing an information event:
* ComponentMetaData.FireInformation(10, "Process Values", "Processing has started", "", 0, fireAgain);
*
* Example of firing a warning event:
* ComponentMetaData.FireWarning(10, "Process Values", "No rows were received", "", 0);
*/
#endregion
///<summary>
///This method is called once, before rows begin to be processed in the data flow.
///
///You can remove this method if you don't need to do anything here.
///</summary>
///
introwCount;
publicoverridevoidPreExecute()
{
base.PreExecute();
/*
* Add your code here
*/
// rowCount = 0;
}
///<summary>
///This method is called after all the rows have passed through this component.
///
///You can delete this method if you don't need to do anything here.
///</summary>
publicoverridevoidPostExecute()
{
base.PostExecute();
/*
* Add your code here
*/
}
///<summary>
///This method is called once for every row that passes through the component from Input0.
///
///Example of reading a value from a column in the the row:
/// string zipCode = Row.ZipCode
///
///Example of writing a value to a column in the row:
/// Row.ZipCode = zipCode
///</summary>
///<param name="Row">The row that is currently passing through the component</param>
publicoverridevoidInput0_ProcessInputRow(Input0Buffer Row)
{
rowCount++;
Row.RowCount = rowCount;
}
}