PipelineBuffer.IsNull Method

Artikel
12/15/2008

Checks to see if the data in a buffer column is null.

Namespace: Microsoft.SqlServer.Dts.Pipeline
Assembly : Microsoft.SqlServer.PipelineHost (in microsoft.sqlserver.pipelinehost.dll)

Syntax

'Declaration
Public Function IsNull ( _
    columnIndex As Integer _
) As Boolean

public bool IsNull (
    int columnIndex
)

public:
bool IsNull (
    int columnIndex
)

public boolean IsNull (
    int columnIndex
)

public function IsNull (
    columnIndex : int
) : boolean

Parameter

columnIndex
The index of the column in the buffer row.

Rückgabewert

true if the column contains null; otherwise, false.

Hinweise

It is recommended that you call the IsNull method prior to calling a data type accessor method, such as GetBoolean, because the PipelineBuffer will produce a ColumnIsNullException if the column is null.

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