ScriptBuffer.SetNull Method

Makes the value of the specified column null.

Espacio de nombres: Microsoft.SqlServer.Dts.Pipeline
Ensamblado: Microsoft.SqlServer.TxScript (in microsoft.sqlserver.txscript.dll)

Sintaxis

'Declaración
Protected Sub SetNull ( _
    ColumnIndex As Integer _
)

protected void SetNull (
    int ColumnIndex
)

protected:
void SetNull (
    int ColumnIndex
)

protected void SetNull (
    int ColumnIndex
)

protected function SetNull (
    ColumnIndex : int
)

Parámetros

ColumnIndex
The index of the column.

Notas

The Script component developer does not use the ScriptBuffer class directly, but indirectly, through the derived classes in the BufferWrapper project item that represent the component's input and outputs.

The developer does not have to use the SetNull method, because the derived classes contain a <ColumnX>_IsNull property for each column that you can use to specify a null value.

Ejemplo

The following sample code from the autogenerated BufferWrapper project item demonstrates how the Script component uses the SetNull method.

    Public WriteOnly Property [city_IsNull] As Boolean
        Set
            SetNull(1)
        End Set
    End Property

Seguridad para subprocesos

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.

Plataformas

Plataformas de desarrollo

Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.

Plataformas de destino