IDTSDesigntimeComponent100.MapInputColumn 方法
Establishes a relationship between an input column and a corresponding external metadata 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 MapInputColumn ( _
lInputID As Integer, _
lInputColumnID As Integer, _
lExternalMetadataColumnID As Integer _
) As IDTSExternalMetadataColumn100
'用途
Dim instance As IDTSDesigntimeComponent100
Dim lInputID As Integer
Dim lInputColumnID As Integer
Dim lExternalMetadataColumnID As Integer
Dim returnValue As IDTSExternalMetadataColumn100
returnValue = instance.MapInputColumn(lInputID, _
lInputColumnID, lExternalMetadataColumnID)
IDTSExternalMetadataColumn100 MapInputColumn(
int lInputID,
int lInputColumnID,
int lExternalMetadataColumnID
)
IDTSExternalMetadataColumn100^ MapInputColumn(
[InAttribute] int lInputID,
[InAttribute] int lInputColumnID,
[InAttribute] int lExternalMetadataColumnID
)
abstract MapInputColumn :
lInputID:int *
lInputColumnID:int *
lExternalMetadataColumnID:int -> IDTSExternalMetadataColumn100
function MapInputColumn(
lInputID : int,
lInputColumnID : int,
lExternalMetadataColumnID : int
) : IDTSExternalMetadataColumn100
參數
- lInputID
型別：System.Int32
The ID of the IDTSInput100 object.
- lInputColumnID
型別：System.Int32
The ID of the IDTSInputColumn100 object.
- lExternalMetadataColumnID
型別：System.Int32
The ID of the IDTSExternalMetadataColumn100 object.
傳回值
型別：Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSExternalMetadataColumn100
The IDTSExternalMetadataColumn100 object that the input column is mapped to.
備註
This method is called to map an input column to a column in the ExternalMetadataColumnCollection of the input. When you are developing a custom data flow component, you override this method to ensure that the input column and the output column match, and to indicate that you want to allow the mapping to occur. For more information about working with external metadata columns, see 實作外部中繼資料.