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Método IsDBNull

Returns a Boolean that contains a value indicating whether the column is set to null.

Namespace:  Microsoft.AnalysisServices.AdomdServer
Assembly:  msmgdsrv (em msmgdsrv.dll)

Sintaxe

'Declaração
Public Function IsDBNull ( _
    i As Integer _
) As Boolean
'Uso
Dim instance As AdomdDataReader
Dim i As Integer
Dim returnValue As Boolean

returnValue = instance.IsDBNull(i)

public bool IsDBNull(
    int i
)

public:
virtual bool IsDBNull(
    int i
) sealed

abstract IsDBNull : 
        i:int -> bool 
override IsDBNull : 
        i:int -> bool 

public final function IsDBNull(
    i : int
) : boolean

Parâmetros

Valor de retorno

Tipo: System. . :: . .Boolean
A Boolean containing true if the column is set to null; false otherwise.

Implementa

IDataRecord. . :: . .IsDBNull(Int32)

Comentários

Call this method to check for null column values before calling the typed methods used to retrieve column values (for example, GetByte, GetChar, and so on), to avoid raising an error.