IDTSDesigntimeComponent100.SetUsageType 方法

Creates an IDTSInputColumn100 object in the IDTSInputColumnCollection100 of the component and sets the UsageType property of the column.

命名空間：  Microsoft.SqlServer.Dts.Pipeline.Wrapper
組件：  Microsoft.SqlServer.DTSPipelineWrap (在 Microsoft.SqlServer.DTSPipelineWrap.dll 中)

語法

'宣告
Function SetUsageType ( _
    lInputID As Integer, _
    pIDTSVirtualInputObject As IDTSVirtualInput100, _
    lLineageID As Integer, _
    eUsageType As DTSUsageType _
) As IDTSInputColumn100
'用途
Dim instance As IDTSDesigntimeComponent100 
Dim lInputID As Integer 
Dim pIDTSVirtualInputObject As IDTSVirtualInput100 
Dim lLineageID As Integer 
Dim eUsageType As DTSUsageType 
Dim returnValue As IDTSInputColumn100 

returnValue = instance.SetUsageType(lInputID, _
    pIDTSVirtualInputObject, lLineageID, _
    eUsageType)

IDTSInputColumn100 SetUsageType(
    int lInputID,
    IDTSVirtualInput100 pIDTSVirtualInputObject,
    int lLineageID,
    DTSUsageType eUsageType
)

IDTSInputColumn100^ SetUsageType(
    [InAttribute] int lInputID, 
    [InAttribute] IDTSVirtualInput100^ pIDTSVirtualInputObject, 
    [InAttribute] int lLineageID, 
    [InAttribute] DTSUsageType eUsageType
)

abstract SetUsageType : 
        lInputID:int * 
        pIDTSVirtualInputObject:IDTSVirtualInput100 * 
        lLineageID:int * 
        eUsageType:DTSUsageType -> IDTSInputColumn100

function SetUsageType(
    lInputID : int, 
    pIDTSVirtualInputObject : IDTSVirtualInput100, 
    lLineageID : int, 
    eUsageType : DTSUsageType
) : IDTSInputColumn100

參數

• lInputID
  型別：System.Int32
  The ID of the IDTSInput100.

• pIDTSVirtualInputObject
  型別：Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSVirtualInput100
  The IDTSVirtualInput100 object that contains the virtual input column and that is used to map the IDTSInputColumn100 object.

• lLineageID
  型別：System.Int32
  The LineageID property of the IDTSVirtualInputColumn100 object.

• eUsageType
  型別：Microsoft.SqlServer.Dts.Pipeline.Wrapper.DTSUsageType
  A value from the DTSUsageType enumeration that is assigned to the IDTSInputColumn100.

傳回值

型別：Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSInputColumn100
The IDTSInputColumn100 object whose UsageType is set.

備註

SetUsageType is called when a column from the IDTSVirtualInputColumnCollection100 is selected for a component. If the usageType is UT_READONLY or UT_READWRITE, a new input column is created for the component that reflects the IDTSVirtualInputColumn100 specified by the lLineageID parameter. If usageType is UT_IGNORED and the column exists in the collection, the column is removed and nullnull 參考 (在 Visual Basic 中為 Nothing) is returned.

請參閱

參考

IDTSDesigntimeComponent100 介面

Microsoft.SqlServer.Dts.Pipeline.Wrapper 命名空間