Hello,
I apologize in advance if this seems like a relative easy answer, however, I can't find it anywhere, and I can't figure it out personally, I am relatively new to SSIS and C#.
I am attempting to write in C# a simple program, where I am taking a table from an OLE DB Source and transfering it to a comma delimited flat file.
I have been trying to work through samples and other methods of help, but I continue to get stuck, and this is my latest problem.
When trying to excecute I get the error: No column was sepcified to allow the component to advance through the file, for my flat file destination.
I know what this means, I just do not know how to fix it.
Below is my code so far. I highly doubt my code is the best it can get for this type of example, so if you see anything that I do not need in the code for it to perform what I want it to perform, please let me know.
(The code to excecute this package is in a different file).
using System;
using Microsoft.SqlServer.Dts.Runtime;
using Microsoft.SqlServer.Dts.Pipeline;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
namespace Microsoft.SqlServer.Dts.Samples
{
class Program
{
static void Main(string[] args)
{
// Create a package and add a Data Flow task.
Package package = new Package();
Executable e = package.Executables.Add("DTS.Pipeline.1");
TaskHost thMainPipe = e as TaskHost;
MainPipe dataFlowTask = thMainPipe.InnerObject as MainPipe;
// Create Application
Application app = new Application();
// Add an OLE DB connection manager to the package.
ConnectionManager conMgr = package.Connections.Add("OLEDB");
conMgr.ConnectionString = "Data Source=ROSIE\\ROSIE2005;" +
"Initial Catalog=AdventureWorks;Provider=SQLNCLI;" +
"Integrated Security=SSPI;Auto Translate=false;";
conMgr.Name = "SSIS Connection Manager for OLE DB";
conMgr.Description = "OLE DB connection to the " +
"AdventureWorks database.";
// Create and configure an OLE DB source component.
IDTSComponentMetaData90 source =
dataFlowTask.ComponentMetaDataCollection.New();
source.ComponentClassID = "DTSAdapter.OLEDBSource.1";
// Create the design-time instance of the source.
CManagedComponentWrapper srcDesignTime = source.Instantiate();
// The ProvideComponentProperties method creates a default output.
srcDesignTime.ProvideComponentProperties();
// Assign the connection manager.
source.RuntimeConnectionCollection[0].ConnectionManager =
DtsConvert.ToConnectionManager90(conMgr);
// Set the custom properties of the source.
srcDesignTime.SetComponentProperty("AccessMode", 2);
srcDesignTime.SetComponentProperty("SqlCommand",
"Select * from HumanResources.EmployeePayHistory");
srcDesignTime.SetComponentProperty("OpenRowset", "[AdventureWorks].[HumanResources].[EmployeePayHistory");
// Need to set the ConnectionManagerID
if (source.RuntimeConnectionCollection.Count > 0)
{
source.RuntimeConnectionCollection[0].ConnectionManagerID =
conMgr.ID;
source.RuntimeConnectionCollection[0].ConnectionManager =
DtsConvert.ToConnectionManager90(conMgr);
}
// Connect to the data source,
// and then update the metadata for the source.
srcDesignTime.AcquireConnections(null);
srcDesignTime.ReinitializeMetaData();
srcDesignTime.ReleaseConnections();
// Add an flat file source connection manager to the package.
ConnectionManager conMgr2 = package.Connections.Add("FlatFile");
conMgr2.ConnectionString = "C:\\Documents and Settings\\ddoorn" +
"\\My Documents\\Visual Studio 2005\\Projects\\" +
"DennisSampleProgram1\\EmployeePayHistory.txt";
conMgr2.Name = "SSIS Connection Manager for Flat File";
conMgr2.Description = "Flat File Destination Connection";
// Create Destination Component
IDTSComponentMetaData90 destination =
dataFlowTask.ComponentMetaDataCollection.New();
destination.Name = "Flat File Destination";
destination.ComponentClassID =
"DTSAdapter.FlatFileDestination.1";
CManagedComponentWrapper destDesignTime = destination.Instantiate();
destDesignTime.ProvideComponentProperties();
// Assign the connection manager.
destination.RuntimeConnectionCollection[0].ConnectionManager =
DtsConvert.ToConnectionManager90(conMgr2);
// Set Custom Properties
destDesignTime.SetComponentProperty("Overwrite", true);
// Assignment an ID to the ConnectionManager
if (destination.RuntimeConnectionCollection.Count > 0)
{
destination.RuntimeConnectionCollection[0].ConnectionManagerID =
conMgr2.ID;
destination.RuntimeConnectionCollection[0].ConnectionManager =
DtsConvert.ToConnectionManager90(conMgr2);
}
// Create the path from source to destination.
IDTSPath90 path = dataFlowTask.PathCollection.New();
path.AttachPathAndPropagateNotifications(source.OutputCollection[0],
destination.InputCollection[0]);
// Get the destination's default input and virtual input.
IDTSInput90 input = destination.InputCollection[0];
IDTSVirtualInput90 vInput = input.GetVirtualInput();
// Iterate through the virtual input column collection.
foreach (IDTSVirtualInputColumn90 vColumn
in vInput.VirtualInputColumnCollection)
{
// Call the SetUsageType method of the destination
// to add each available virtual input column as an input column.
destDesignTime.SetUsageType(
input.ID, vInput, vColumn.LineageID,
DTSUsageType.UT_READONLY);
}
//map external metadata to the inputcolumn
//int index = 0;
foreach (IDTSInputColumn90 inputColumn in input.InputColumnCollection)
{
IDTSExternalMetadataColumn90 exMetaColumn =
input.ExternalMetadataColumnCollection.New();
//(IDTSExternalMetadataColumn90)input.ExternalMetadataColumnCollection[index++];
exMetaColumn.CodePage = inputColumn.CodePage;
exMetaColumn.DataType = inputColumn.DataType;
exMetaColumn.Length = inputColumn.Length;
exMetaColumn.Name = inputColumn.Name;
inputColumn.ExternalMetadataColumnID = exMetaColumn.ID;
destDesignTime.MapInputColumn(input.ID, inputColumn.ID, exMetaColumn.ID);
}
// Verify that the columns have been added to the input.
// This is only really required for debugging purposes
Console.WriteLine("Below are the columns that have been added " +
"to the input. Press Enter to Verify");
foreach (IDTSInputColumn90 inputColumn in
destination.InputCollection[0].InputColumnCollection)
{
Console.WriteLine(inputColumn.Name);
}
Console.Read();
// Connect to the data source,
// and then update the metadata for the source.
destDesignTime.AcquireConnections(null);
destDesignTime.ReinitializeMetaData();
destDesignTime.ReleaseConnections();
// Save Package to XML
app.SaveToXml("C:\\Documents and Settings\\ddoorn\\My Documents\\" +
"Visual Studio 2005\\Projects\\DennisSampleProgram1\\" +
"DennisSampleProgram1\\DennisSampleProject1.xml",
package, null);
} // main
} // program
} // namespace
Nevermind, I found an example that comes with SQL Server 2005/Visual Studio and I found my mistake.