通过

IDTSDesigntimeComponent90.MapInputColumn Method

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 (in microsoft.sqlserver.dtspipelinewrap.dll)

语法

声明
<DispIdAttribute(33)> _
Function MapInputColumn ( _
    <InAttribute> lInputID As Integer, _
    <InAttribute> lInputColumnID As Integer, _
    <InAttribute> lExternalMetadataColumnID As Integer _
) As IDTSExternalMetadataColumn90

[DispIdAttribute(33)] 
IDTSExternalMetadataColumn90 MapInputColumn (
    [InAttribute] int lInputID,
    [InAttribute] int lInputColumnID,
    [InAttribute] int lExternalMetadataColumnID
)

[DispIdAttribute(33)] 
IDTSExternalMetadataColumn90^ MapInputColumn (
    [InAttribute] int lInputID, 
    [InAttribute] int lInputColumnID, 
    [InAttribute] int lExternalMetadataColumnID
)

/** @attribute DispIdAttribute(33) */ 
IDTSExternalMetadataColumn90 MapInputColumn (
    /** @attribute InAttribute() */ int lInputID, 
    /** @attribute InAttribute() */ int lInputColumnID, 
    /** @attribute InAttribute() */ int lExternalMetadataColumnID
)

DispIdAttribute(33) 
function MapInputColumn (
    lInputID : int, 
    lInputColumnID : int, 
    lExternalMetadataColumnID : int
) : IDTSExternalMetadataColumn90

参数

返回值

The IDTSExternalMetadataColumn90 object that the input column is mapped to.

备注

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 Implementing External Metadata.

线程安全

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

IDTSDesigntimeComponent90 Interface
IDTSDesigntimeComponent90 Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace