IDTSInputColumn90.IsValid Property

Artykuł
12/03/2008

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

Property Value

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

Remarks

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 An input column is no longer valid if a column upstream from the input column cannot be found that has the same lineage ID as the input column.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.

Thread Safety

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.

Platforms

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

Target Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

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