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Interfaz IDTSExternalMetadataColumnCollection100

Contains a collection of IDTSExternalMetadataColumn100 objects that represent the columns of an external data source.

Espacio de nombres:  Microsoft.SqlServer.Dts.Pipeline.Wrapper
Ensamblado:  Microsoft.SqlServer.DTSPipelineWrap (en Microsoft.SqlServer.DTSPipelineWrap.dll)

Sintaxis

'Declaración
<GuidAttribute("E472B6AE-202C-4C67-8F44-7D7EE3807A44")> _
Public Interface IDTSExternalMetadataColumnCollection100 _
    Inherits IEnumerable
'Uso
Dim instance As IDTSExternalMetadataColumnCollection100

[GuidAttribute("E472B6AE-202C-4C67-8F44-7D7EE3807A44")]
public interface IDTSExternalMetadataColumnCollection100 : IEnumerable

[GuidAttribute(L"E472B6AE-202C-4C67-8F44-7D7EE3807A44")]
public interface class IDTSExternalMetadataColumnCollection100 : IEnumerable

[<GuidAttribute("E472B6AE-202C-4C67-8F44-7D7EE3807A44")>]
type IDTSExternalMetadataColumnCollection100 =  
    interface
        interface IEnumerable
    end

public interface IDTSExternalMetadataColumnCollection100 extends IEnumerable

El tipo IDTSExternalMetadataColumnCollection100 expone los siguientes miembros.

Propiedades

  Nombre Descripción
Propiedad pública Count Gets the number of elements contained in an IDTSExternalMetadataColumnCollection100.
Propiedad pública IsUsed Gets or sets a value that indicates whether the collection is populated by the component.
Propiedad pública Item Gets the IDTSExternalMetadataColumn100 object specified by the Index parameter.

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Métodos

  Nombre Descripción
Método público FindObjectByID Locates an object in the collection by its ID.
Método público FindObjectIndexByID Locates the index of an object in the collection by its ID.
Método público GetEnumerator() () () () (Se hereda de IEnumerable.)
Método público GetEnumerator() () () () Returns an enumerator that can iterate through an IDTSExternalMetadataColumnCollection100.
Método público GetObjectByID Gets an IDTSExternalMetadataColumn100 object that has the specified ID.
Método público GetObjectIndexByID Gets the index of an IDTSExternalMetadataColumn100 object that has the specified ID.
Método público New Creates a new IDTSExternalMetadataColumn100 object and adds it to the end of a collection.
Método público NewAt Creates a new IDTSExternalMetadataColumn100 at the specified location in a collection.
Método público RemoveAll Deletes each IDTSExternalMetadataColumn100 object in a collection.
Método público RemoveObjectByID Removes an IDTSExternalMetadataColumn100 object that has the specified ID.
Método público RemoveObjectByIndex Removes an IDTSExternalMetadataColumn100 object at the specified index.
Método público SetIndex Changes the location in the collection of an IDTSExternalMetadataColumn100 object.

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Comentarios

A data flow component populates and uses this collection to validate the columns in its IDTSInputColumnCollection100 or IDTSOutputColumnCollection100 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 Implementar metadatos externos.