IDTSInputColumn90.IsValid Property

Gets a value that indicates whether an input column references an upstream column.

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

Syntax

'Declaration
<DispIdAttribute(122)> _
ReadOnly Property IsValid As Boolean

[DispIdAttribute(122)] 
bool IsValid { get; }

[DispIdAttribute(122)] 
property bool IsValid {
    bool get ();
}

/** @property */
/** @attribute DispIdAttribute(122) */ 
boolean get_IsValid ()

DispIdAttribute(122) 
function get IsValid () : boolean

Eigenschaftswert

true if the IDTSOutputColumn90 object still exists and has the same properties; otherwise, false.

Hinweise

Input columns always reference an output column from an upstream component. The output column of the upstream component is identified by the LineageID property of the input column. An input column is no longer valid if a column upstream from the input column cannot be found that has the same lineage ID as the input column. These types of columns are often referred to as orphans because their origination no longer exists.

Threadsicherheit

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.

Plattformen

Entwicklungsplattformen

Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.

Zielplattforme

Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.

Siehe auch

Verweis

IDTSInputColumn90 Interface
IDTSInputColumn90 Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace