IDTSExternalMetadataColumnCollection90 Interface

Articolo
12/15/2008

Contains a collection of IDTSExternalMetadataColumn90 objects that represent the columns of an external data source.

Spazio dei nomi: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly : Microsoft.SqlServer.DTSPipelineWrap (in microsoft.sqlserver.dtspipelinewrap.dll)

Sintassi

'Dichiarazione
<TypeLibTypeAttribute(4160)> _
<DefaultMemberAttribute("Item")> _
<GuidAttribute("CC6D94F9-F447-4445-AB36-D786D7A21CB3")> _
Public Interface IDTSExternalMetadataColumnCollection90
    Inherits IEnumerable

[TypeLibTypeAttribute(4160)] 
[DefaultMemberAttribute("Item")] 
[GuidAttribute("CC6D94F9-F447-4445-AB36-D786D7A21CB3")] 
public interface IDTSExternalMetadataColumnCollection90 : IEnumerable

[TypeLibTypeAttribute(4160)] 
[DefaultMemberAttribute(L"Item")] 
[GuidAttribute(L"CC6D94F9-F447-4445-AB36-D786D7A21CB3")] 
public interface class IDTSExternalMetadataColumnCollection90 : IEnumerable

/** @attribute TypeLibTypeAttribute(4160) */ 
/** @attribute DefaultMemberAttribute("Item") */ 
/** @attribute GuidAttribute("CC6D94F9-F447-4445-AB36-D786D7A21CB3") */ 
public interface IDTSExternalMetadataColumnCollection90 extends IEnumerable

TypeLibTypeAttribute(4160) 
DefaultMemberAttribute("Item") 
GuidAttribute("CC6D94F9-F447-4445-AB36-D786D7A21CB3") 
public interface IDTSExternalMetadataColumnCollection90 extends IEnumerable

Osservazioni

A data flow component populates and uses this collection to validate the columns in its IDTSInputColumnCollection90 or IDTSOutputColumnCollection90 when the ValidateExternalMetadata property is false or when the SSIS Designer is in offline mode.

The collection typically represents the columns of an external data source used by a source or destination component. Use of the collection allows the component to perform validation without an expensive, time-consuming round trip to the source itself.

For more information about implementing external metadata columns in components see Implementing External Metadata.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Vedere anche

Riferimento

IDTSExternalMetadataColumnCollection90 Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace

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