通过

IDTSDesigntimeComponent100.MapInputColumn 方法

  • 项目

Establishes a relationship between an input column and a corresponding external metadata column.

命名空间：  Microsoft.SqlServer.Dts.Pipeline.Wrapper
程序集：  Microsoft.SqlServer.DTSPipelineWrap（在 Microsoft.SqlServer.DTSPipelineWrap.dll 中）

语法

声明
Function MapInputColumn ( _
    lInputID As Integer, _
    lInputColumnID As Integer, _
    lExternalMetadataColumnID As Integer _
) As IDTSExternalMetadataColumn100
用法
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

参数

返回值

类型：Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSExternalMetadataColumn100
The IDTSExternalMetadataColumn100 object that the input column is mapped to.

注释

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 实现外部元数据.

请参阅

参考

IDTSDesigntimeComponent100 接口

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