Compartilhar via


Propriedade do RDL IDTSInputColumn100.IsValid

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

Namespace:  Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly:  Microsoft.SqlServer.DTSPipelineWrap (em Microsoft.SqlServer.DTSPipelineWrap.dll)

Sintaxe

'Declaração
ReadOnly Property IsValid As Boolean 
    Get
'Uso
Dim instance As IDTSInputColumn100 
Dim value As Boolean 

value = instance.IsValid
bool IsValid { get; }
property bool IsValid {
    bool get ();
}
abstract IsValid : bool
function get IsValid () : boolean

Valor da propriedade

Tipo: System.Boolean
true if the IDTSOutputColumn100 object still exists and has the same properties; otherwise, false.

Comentários

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 An input column is no longer valid if a column upstream from the input column cannot be found that has the same lineage ID as the input column.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

Consulte também

Referência

IDTSInputColumn100 Interface

Namespace Microsoft.SqlServer.Dts.Pipeline.Wrapper