프로그래밍 방식으로 입력 열 선택
적용 대상: 
Azure Data Factory의 SQL Server SSIS Integration Runtime
프로그래밍 방식으로 연결된 구성 요소가 있으면 업스트림 구성 요소에서 변환하거나 다운스트림 구성 요소로 전달할 열을 선택합니다. 구성 요소에 대한 입력 열을 선택하지 않으면 구성 요소는 데이터 흐름 태스크에서 행을 수신하지 않습니다.
열 선택
메서드를 GetVirtualInput 호출하여 업스트림 구성 요소에서 사용 가능한 열 목록을 검색한 다음 디자인 타임 구성 요소 인스턴스의 메서드를 호출 SetUsageType 하여 가상 입력 열 컬렉션에서 열을 선택합니다. 이 메서드를 호출하면 구성 요소는 업스트림 구성 요소의 출력 컬렉션에 있는 해당 열과 동일한 계보 ID를 가진 새 입력 열을 입력 열 컬렉션에 만듭니다.
부적절한 데이터 형식 또는 기타 속성에 따라 열을 거부하는 구성 요소의 기능을 무시하므로 가상 입력 개체의 메서드를 직접 호출 SetUsageType 하여 열을 선택하지 마세요.
예제
다음 코드 샘플에서는 구성 요소의 디자인 타임 인스턴스를 사용하여 구성 요소의 열을 선택하는 방법을 보여 줍니다.
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("STOCK:PipelineTask");
TaskHost thMainPipe = e as TaskHost;
MainPipe dataFlowTask = thMainPipe.InnerObject as MainPipe;
// Add an OLE DB connection manager to the package.
ConnectionManager conMgr = package.Connections.Add("OLEDB");
conMgr.ConnectionString = "Provider=SQLOLEDB.1;" +
"Data Source=<servername>;Initial Catalog=AdventureWorks;" +
"Integrated Security=SSPI;";
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.
IDTSComponentMetaData100 source =
dataFlowTask.ComponentMetaDataCollection.New();
source.ComponentClassID = "DTSAdapter.OleDbSource";
// 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.GetExtendedInterface(conMgr);
// Set the custom properties of the source.
srcDesignTime.SetComponentProperty("AccessMode", 2);
srcDesignTime.SetComponentProperty("SqlCommand",
"Select * from Production.Product");
// Connect to the data source,
// and then update the metadata for the source.
srcDesignTime.AcquireConnections(null);
srcDesignTime.ReinitializeMetaData();
srcDesignTime.ReleaseConnections();
// Create and configure an OLE DB destination.
IDTSComponentMetaData100 destination =
dataFlowTask.ComponentMetaDataCollection.New();
destination.ComponentClassID = "DTSAdapter.OleDbDestination";
// Create the design-time instance of the destination.
CManagedComponentWrapper destDesignTime = destination.Instantiate();
// The ProvideComponentProperties method creates a default input.
destDesignTime.ProvideComponentProperties();
// Create the path from source to destination.
IDTSPath100 path = dataFlowTask.PathCollection.New();
path.AttachPathAndPropagateNotifications(source.OutputCollection[0],
destination.InputCollection[0]);
// Get the destination's default input and virtual input.
IDTSInput100 input = destination.InputCollection[0];
IDTSVirtualInput100 vInput = input.GetVirtualInput();
// Iterate through the virtual input column collection.
foreach (IDTSVirtualInputColumn100 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);
}
// Verify that the columns have been added to the input.
foreach (IDTSInputColumn100 inputColumn in destination.InputCollection[0].InputColumnCollection)
Console.WriteLine(inputColumn.Name);
Console.Read();
// Add other components to the data flow and connect them.
}
}
}
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Pipeline
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Module Module1
Sub Main()
' Create a package and add a Data Flow task.
Dim package As Microsoft.SqlServer.Dts.Runtime.Package = _
New Microsoft.SqlServer.Dts.Runtime.Package()
Dim e As Executable = package.Executables.Add("STOCK:PipelineTask")
Dim thMainPipe As Microsoft.SqlServer.Dts.Runtime.TaskHost = _
CType(e, Microsoft.SqlServer.Dts.Runtime.TaskHost)
Dim dataFlowTask As MainPipe = CType(thMainPipe.InnerObject, MainPipe)
' Add an OLE DB connection manager to the package.
Dim conMgr As ConnectionManager = package.Connections.Add("OLEDB")
conMgr.ConnectionString = "Provider=SQLOLEDB.1;" & _
"Data Source=<servername>;Initial Catalog=AdventureWorks;" & _
"Integrated Security=SSPI;"
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.
Dim source As IDTSComponentMetaData100 = _
dataFlowTask.ComponentMetaDataCollection.New
source.ComponentClassID = "DTSAdapter.OleDbSource"
' Create the design-time instance of the source.
Dim srcDesignTime As CManagedComponentWrapper = source.Instantiate
' The ProvideComponentProperties method creates a default output.
srcDesignTime.ProvideComponentProperties()
' Assign the connection manager.
source.RuntimeConnectionCollection(0).ConnectionManager = _
DtsConvert.GetExtendedInterface(conMgr)
' Set the custom properties of the source.
srcDesignTime.SetComponentProperty("AccessMode", 2)
srcDesignTime.SetComponentProperty("SqlCommand", _
"Select * from Production.Product")
' Connect to the data source,
' and then update the metadata for the source.
srcDesignTime.AcquireConnections(Nothing)
srcDesignTime.ReinitializeMetaData()
srcDesignTime.ReleaseConnections()
' Create and configure an OLE DB destination.
Dim destination As IDTSComponentMetaData100 = _
dataFlowTask.ComponentMetaDataCollection.New
destination.ComponentClassID = "DTSAdapter.OleDbDestination"
' Create the design-time instance of the destination.
Dim destDesignTime As CManagedComponentWrapper = destination.Instantiate
' The ProvideComponentProperties method creates a default input.
destDesignTime.ProvideComponentProperties()
' Create the path from source to destination.
Dim path As IDTSPath100 = dataFlowTask.PathCollection.New
path.AttachPathAndPropagateNotifications(source.OutputCollection(0), _
destination.InputCollection(0))
' Get the destination's default input and virtual input.
Dim input As IDTSInput100 = destination.InputCollection(0)
Dim vInput As IDTSVirtualInput100 = input.GetVirtualInput
' Iterate through the virtual input column collection.
For Each vColumn As IDTSVirtualInputColumn100 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)
Next
' Verify that the columns have been added to the input.
For Each inputColumn As IDTSInputColumn100 In destination.InputCollection(0).InputColumnCollection
Console.WriteLine(inputColumn.Name)
Next
Console.Read()
' Add other components to the data flow and connect them.
End Sub
End Module